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A capillary absorption spectrometer for stable carbon isotope ratio (C/C) analysis in very small samplesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
J. F. Kelly, R. L. Sams, T. A. Blake, M. Newburn, J. Moran et al. A capillary absorption spectrometer (CAS) suitable for IR laser isotope analysis of small CO samples is presented. The system employs a continuous-wave (cw) quantum cascade laser to study nearly adjacent rovibrational transitions of different isotopologues of CO near 2307 cm (4.34 [mu]m). This initi ... [Rev. Sci. Instrum. 83, 023101 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Improved chopping of a lithium beam for plasma edge diagnostic at ASDEX UpgradeEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
M. Willensdorfer, E. Wolfrum, R. Fischer, J. Schweinzer, M. Sertoli et al. The lithium beam diagnostic at ASDEX Upgrade routinely delivers electron density profiles in the plasma edge by lithium beam impact excitation spectroscopy. An accurate background subtraction requires a periodically chopped lithium beam. A new, improved chopping system was developed and installed. I ... [Rev. Sci. Instrum. 83, 023501 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Effectiveness of frequency mapping on 28 nm device broken scan chain failuresEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
S. H. Goh, Yan Pan, G. F. You, Y. H. Chan, He ran et al. Frequency mapping methodology is an effective diagnostic tool for detection of manufacturing defects in scan chains. It analyses reflected laser modulations from toggling scan cells to localize defective scan path or scan cell. In this paper, we demonstrate experimentally that the use of solid immer ... [Rev. Sci. Instrum. 83, 023702 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Pilot-scale cooling tower to evaluate corrosion, scaling, and biofouling control strategies for cooling system makeup waterEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
S. H. Chien, M. K. Hsieh, H. Li, J. Monnell, D. Dzombak et al. Pilot-scale cooling towers can be used to evaluate corrosion, scaling, and biofouling control strategies when using particular cooling system makeup water and particular operating conditions. To study the potential for using a number of different impaired waters as makeup water, a pilot-scale system ... [Rev. Sci. Instrum. 83, 024101 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

An explosively driven high-power microwave pulsed power systemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
M. A. Elsayed, A. A. Neuber, J. C. Dickens, J. W. Walter, M. Kristiansen et al. The increased popularity of high power microwave systems and the various sources to drive them is the motivation behind the work to be presented. A stand-alone, self-contained explosively driven high power microwave pulsed power system has been designed, built, and tested at Texas Tech University's ... [Rev. Sci. Instrum. 83, 024705 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Application of length vernier in phase coincidence detection and precision frequency measurementEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Miao Miao, Zhou Wei, and Wang Bin For comparison of arbitrary frequency signals, the paper proposed two levels of length vernier based on the time-space relationship are used in three levels of phase coincidence detecting circuits to extract the phase coincidence information by proper logic calculation. The length/phase of each vern ... [Rev. Sci. Instrum. 83, 024706 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Recent progress on the superconducting ion source VENUSEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
J. Y. Benitez, K. Y. Franzen, A. Hodgkinson, T. Loew, C. M. Lyneis et al. The 28 GHz Ion Source VENUS (versatile ECR for nuclear science) is back in operation after the superconducting sextupole leads were repaired and a fourth cryocooler was added. VENUS serves as an R&D device to explore the limits of electron cyclotron resonance source performance at 28 GHz with its 10 ... [Rev. Sci. Instrum. 83, 02A311 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

The electron cyclotron resonance ion source with arc-shaped coils concept (invited)Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
H. Koivisto, P. Suominen, O. Tarvainen, and P. Spadtke The main limitation to further improve the performance of ECR ion sources is set by the magnet technology related to the multipole magnet field used for the closed minimum-B structure. The JYFL ion source group has sought different approaches to improve the strength of the minimum-B structure requir ... [Rev. Sci. Instrum. 83, 02A312 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Matrix of small-radius radio-frequency discharges as a volume-production based source of negative hydrogen ionsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
St. Lishev, Ts. Paunska, A. Shivarova, and Kh. Tarnev Based on experience from a workboth theoretical and experimental oneon negative hydrogen ion beam sources studied regarding fusion applications, a novel design of a rf source with volume production of the ions is proposed. The suggestion is for a source constructed as a matrix of small-radius tandem ... [Rev. Sci. Instrum. 83, 02A702 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Upgrade of the resonance ionization laser ion source at ISOLDE on-line isotope separation facility: New lasers and new ion beamsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
V. N. Fedosseev, L.-E. Berg, D. V. Fedorov, D. Fink, O. J. Launila et al. The resonance ionization laser ion source (RILIS) produces beams for the majority of experiments at the ISOLDE on-line isotope separator. A substantial improvement in RILIS performance has been achieved through a series of upgrade steps: replacement of the copper vapor lasers by a Nd:YAG laser; repl ... [Rev. Sci. Instrum. 83, 02A903 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Laser ion source development at Holifield Radioactive Ion Beam FacilityEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This report describes the efforts made to develop a resonant-ionization laser ion source based on tunable Ti:sapphire lasers for nuclear physics and astrophysics research at Holifield Radioactive Ion Beam Facility. Three Ti:sapphire lasers have been upgraded with individual pump lasers to eliminate ... [Rev. Sci. Instrum. 83, 02A904 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Diagnostics of the ITER neutral beam test facilityEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
R. Pasqualotto, G. Serianni, P. Sonato, M. Agostini, M. Brombin et al. The ITER heating neutral beam (HNB) injector, based on negative ions accelerated at 1 MV, will be tested and optimized in the SPIDER source and MITICA full injector prototypes, using a set of diagnostics not available on the ITER HNB. The RF source, where the H/D production is enhanced by cesium eva ... [Rev. Sci. Instrum. 83, 02B103 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Comparison between off-resonance and electron Bernstein waves heating regime in a microwave discharge ion sourceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
G. Castro, D. Mascali, F. P. Romano, L. Celona, S. Gammino et al. A microwave discharge ion source (MDIS) operating at the Laboratori Nazionali del Sud of INFN, Catania has been used to compare the traditional electron cyclotron resonance (ECR) heating with an innovative mechanisms of plasma ignition based on the electrostatic Bernstein waves (EBW). EBW are obtain ... [Rev. Sci. Instrum. 83, 02B501 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Laser and focused ion beam combined machining for micro diesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Y. Yoshida, W. Okazaki, and T. Uchida We have developed a laser and focused ion beam (FIB) compound process for press mold dies of a micro lens array (MLA) and a micro needle array (MNA) in a glassy carbon (GC). The press mold die of the MLA was roughly fabricated by UV-YAG laser. After this process, we finished this surface by scanning ... [Rev. Sci. Instrum. 83, 02B901 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

The second generation Singapore high resolution proton beam writing facilityEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
J. A. van Kan, P. Malar, and Armin Baysic de Vera A new proton beam focusing facility, designed for proton beam writing (PBW) applications has been tested. PBW allows for proximity free structuring of high aspect ratio, high-density 3D nanostructures. The new facility is designed around OM52 compact quadrupole lenses capable of operating in a varie ... [Rev. Sci. Instrum. 83, 02B902 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

A Tandetron as proton injector for the eye tumor therapy in BerlinEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
J. Rohrich, T. Damerow, W. Hahn, U. Muller, U. Reinholz et al. The therapy of eye tumors with fast protons is an excellent tool giving very high local control rates. At the Helmholtz-Zentrum Berlin (HZB) almost 1800 patients were treated since 1998. A 2 MV Tandetron was installed as injector for the k = 132 HZB cyclotron. Using the standard 358 duoplasmatron io ... [Rev. Sci. Instrum. 83, 02B903 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - February 6, 2012 Category: Physics Source Type: research

Dynamic mitigation of instabilitiesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
S. Kawata In the paper Phys. Plasmas 18, 092705 (2011), dynamic stabilization mechanism for the Rayleigh-Taylor instability was discussed together with another dynamic migration mechanism, which we proposed and is discussed further in a more general way in this paper. In general, a perturbation of physical qu ... [Phys. Plasmas 19, 024503 (2012)] published Mon Feb 6, 2012. (Source: Physics of Plasmas)
Source: Physics of Plasmas - February 6, 2012 Category: Physics Source Type: research

Nonlinear entropy transfer via zonal flows in gyrokinetic plasma turbulenceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
M. Nakata, T.-H. Watanabe, and H. Sugama Nonlinear entropy transfer processes in toroidal ion temperature gradient (ITG) and electron temperature gradient (ETG) driven turbulence are investigated based on the gyrokinetic entropy balance relations for zonal and non-zonal modes, which are coupled through the entropy transfer function regarde ... [Phys. Plasmas 19, 022303 (2012)] published Mon Feb 6, 2012. (Source: Physics of Plasmas)
Source: Physics of Plasmas - February 6, 2012 Category: Physics Source Type: research

Strain-vorticity induced secondary motion in shallow flowsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Leon P. J. Kamp Deviations from two-dimensionality of a shallow flow that is dominated by bottom friction are quantified in terms of the spatial distribution of strain and vorticity as described by the Okubo-Weiss function. This result is based on a Poisson equation for the pressure in a quasi-horizontal (primary) ... [Phys. Fluids 24, 023601 (2012)] published Mon Feb 6, 2012. (Source: Physics of Fluids)
Source: Physics of Fluids - February 6, 2012 Category: Physics Source Type: research

Trajectory-guided configuration interaction simulations of multidimensional quantum dynamicsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Scott Habershon We propose an approach to modelling multidimensional quantum systems which uses direct-dynamics trajectories to guide wavefunction propagation. First, trajectory simulations are used to generate a sample of dynamically relevant configurations on the potential energy surface (PES). Second, the sample ... [J. Chem. Phys. 136, 054109 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

The sign problem and population dynamics in the full configuration interaction quantum Monte Carlo methodEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
J. S. Spencer, N. S. Blunt, and W. M.C. Foulkes The recently proposed full configuration interaction quantum Monte Carlo method allows access to essentially exact ground-state energies of systems of interacting fermions substantially larger than previously tractable without knowledge of the nodal structure of the ground-state wave function. We in ... [J. Chem. Phys. 136, 054110 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

The multi-configuration electron-nuclear dynamics method applied to LiHEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Inga S. Ulusoy and Mathias Nest The multi-configuration electron-nuclear dynamics (MCEND) method is a nonadiabatic quantum dynamics approach to the description of molecular processes. MCEND is a combination of the multi-configuration time-dependent Hartree (MCTDH) method for atoms and its antisymmetrized equivalent MCTDHF for elec ... [J. Chem. Phys. 136, 054112 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Quasi-variational coupled cluster theoryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
James B. Robinson and Peter J. Knowles We extend our previous work on the construction of new approximations of the variational coupled cluster method. By combining several linked pair functional transformations in such a way as to give appropriately balanced infinite-order contributions, in order to approximate well at all orders, we f ... [J. Chem. Phys. 136, 054114 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Stochastic mapping of the Michaelis-Menten mechanismEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Eva Doka and Gabor Lente The Michaelis-Menten mechanism is an extremely important tool for understanding enzyme-catalyzed transformation of substrates into final products. In this work, a computationally viable, full stochastic description of the Michaelis-Menten kinetic scheme is introduced based on a stochastic equivalent ... [J. Chem. Phys. 136, 054111 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Exploring the competition between localization and delocalization of the neutral soliton defect in polyenyl chains with the orbital optimized second order opposite spin methodEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Westin Kurlancheek, Rohini Lochan, Keith Lawler, and Martin Head-Gordon Theory and implementation of the analytical nuclear gradient is presented for orbital optimized scaled opposite-spin perturbation theory (O2). Evaluation of the O2 analytical gradient scales with the 4th power of molecular size, like the O2 energy. Since the O2 method permits optimization of the orb ... [J. Chem. Phys. 136, 054113 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

The electronic spectrum of the C-CH radicalEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Dongfeng Zhao (赵东锋), Harold Linnartz, and Wim Ubachs The electronic gas-phase absorption spectrum of the bent carbon-chain radical, HCCHCH with C symmetry, is recorded in the 595 nm region by cavity ring-down spectroscopy through an expanding hydrogen plasma. An unambiguous spectroscopic identification becomes possible from a systematic deuterium labe ... [J. Chem. Phys. 136, 054307 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Surface area controlled heterogeneous nucleationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Brian Steer, Boris Gorbunov, Jonathan Rowles, and David Green Heterogeneous nucleation of liquid from a gas phase on nanoparticles has been studied under various saturation ratios and nuclei size. The probability of liquid droplet nucleation, especially at a low degree of deviation from equilibrium, was measured for both atmospheric aerosol particles and engin ... [J. Chem. Phys. 136, 054704 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Nonadiabatic dynamics of O(D) + N(XSigma)-->O(P) + N(XSigma) on three coupled potential surfaces: Symmetry, Coriolis, spin-orbit, and Renner-Teller effectsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We present the spin-orbit (SO) and Renner-Teller (RT) quantum dynamics of the spin-forbidden quenching O(D) + N(XSigma)-->O(P) + N(XSigma) on the NO X-tildeA, aA, and b-tildeA coupled PESs. We use the permutation-inversion symmetry, propagate coupled-channel (CC) real wavepackets, and compute initia ... [J. Chem. Phys. 136, 054308 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Mobility matrix of a spherical particle translating and rotating in a viscous fluid confined in a spherical cell, and the rate of escape from the cellEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
B. U. Felderhof and A. Sellier The mobility matrix of a spherical particle moving in a spherical cavity, filled with a viscous incompressible fluid, and with no-slip boundary condition at the wall of the cavity, is evaluated from the Oseen tensor for the cavity by the method used by Lorentz for a particle near a planar wall. For ... [J. Chem. Phys. 136, 054703 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Correlated intermolecular coupling fluctuations in photosynthetic complexesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Sebastiaan M. Vlaming and Robert J. Silbey The functioning and efficiency of natural photosynthetic complexes is strongly influenced by their embedding in a noisy protein environment, which can even serve to enhance the transport efficiency. Interactions with the environment induce fluctuations of the transition energies and couplings betwee ... [J. Chem. Phys. 136, 055102 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Effects of particles on stability of flow-induced precursorsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Peng-Wei Zhu, Andrew W. Phillips, and Graham Edward The effect of two colorant particles with different surface geometries on the stability of shear-induced precursors in isotactic polypropylene was studied after the cessation of shear flow at 140 degrees C. In the absence of particles, the shear-induced precursors survived for at least 100 s after ... [J. Chem. Phys. 136, 054903 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Methyl group rotation, H spin-lattice relaxation in an organic solid, and the analysis of nonexponential relaxationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We report H spin-lattice relaxation measurements in polycrystalline 4,4-dimethoxybiphenyl at temperatures between 80 and 300 K at NMR frequencies of omega/2pi = 8.50, 22.5, and 53.0 MHz. The data are interpreted in terms of the simplest possible Bloch-Wangsness-Redfield methyl group hopping model. D ... [J. Chem. Phys. 136, 054508 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Formation of dodecagonal quasicrystals in two-dimensional systems of patchy particlesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Marjolein N. van der Linden, Jonathan P. K. Doye, and Ard A. Louis The behaviour of two-dimensional patchy particles with five and seven regularly arranged patches is investigated by computer simulation. For higher pressures and wider patch widths, hexagonal crystals have the lowest enthalpy, whereas at lower pressures and for narrower patches, lower density crysta ... [J. Chem. Phys. 136, 054904 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Conformational properties of macromolecular pyramoids and their potential use as nano-containersEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
M. Kosmas and P. Efthymiopoulos We study the macroscopic behavior of a pyramid-like nano-construct made of linear macromolecular chains. The average mean square end-to-end distances of the six edges of the pyramoid are evaluated by means of the Gaussian chain model and are found smaller than those of free chains because of archite ... [J. Chem. Phys. 136, 054905 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Cold collisions of complex polyatomic moleculesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Zhiying Li and Eric J. Heller We introduce a method for classical trajectory calculations to simulate collisions between atoms and large rigid asymmetric-top molecules. We investigate the formation of molecule-helium complexes in buffer-gas cooling experiments at a temperature of 6.5 K for molecules as large as naphthalene. Our ... [J. Chem. Phys. 136, 054306 (2012)] published Mon Feb 6, 2012. (Source: Journal of Chemical Physics)
Source: Journal of Chemical Physics - February 6, 2012 Category: Physics Source Type: research

Effect of P addition on nanocrystallization and high temperature magnetic properties of low B and Nb containing FeCo nanocompositesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Rajat K. Roy, S. Shen, S. J. Kernion, and M. E. McHenry The P content dependencies of the nanocrystallization behaviors and high temperature magnetic properties of the FeCoSi(BP)NbCu (Y = 0, 0.2, and 0.3) alloys have been investigated. Alloys were prepared by melt spinning and subsequently annealed in an argon atmosphere to induce nanocrystallization. P ... [J. Appl. Phys. 111, 07A301 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Skin effect suppression for Cu/CoZrNb multilayered inductorEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Noriyuki Sato, Yasushi Endo, and Masahiro Yamaguchi The Cu/CoZrNb multilayer is studied as a conductor of a spiral inductor to suppress the skin effect at the 5 GHz range (matches IEEE 802.11 a standard) using negative-permeability in CoZrNb films beyond the ferromagnetic resonance frequency. The skin effect suppression becomes remarkable when the th ... [J. Appl. Phys. 111, 07A501 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

The partitioning of Dy and Tb in NdFeB magnets: A first-principles studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
X. B. Liu and Z. Altounian Doping with Dy/Tb is a current solution to improve the coercivity and the operating temperature of NdFeB magnets, by increasing the magnetocrystalline anisotropy of the (Nd, Dy/Tb)FeB (2:14:1) phase. The efficiency of Dy/Tb doping depends on the distribution of Dy/Tb in the multi-phase microstructur ... [J. Appl. Phys. 111, 07A701 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Nanometer size effects on magnetic order in LaCaMnO (x = 0.5 and 0.6) manganites, probed by ferromagnetic resonanceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A. I. Shames, E. Rozenberg, E. Sominski, and A. Gedanken The data on X-band ferromagnetic resonance (FMR) in the half and electron-doped LaCaMnO (Ca0.5) and LaCaMnO (Ca0.6) nano-crystals and bulk ceramics are reported. The FMR data for considered nano-samples appeared to be strongly different, reflecting a difference in their magnetic/electronic order. An ... [J. Appl. Phys. 111, 07D701 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Giant magnetostriction in tetragonally distorted antiperovskite manganese nitridesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
T. Shimizu, T. Shibayama, K. Asano, and K. Takenaka The discovery of giant magnetostriction exceeding 2000 ppm in MnCuN has stimulated the research of manganese antiperovskites from the perspective of forced magnetostriction. We discovered that MnSbN exhibits a large magnetostriction of up to 450 ppm in the tetragonally distorted ferromagnetic phase ... [J. Appl. Phys. 111, 07A903 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Ab initio calculation of the local magnetic moment in titanium doped zinc oxide with a corrected-band-gap schemeEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Bin Shao, Hong Liu, Jian Wu, and Xu Zuo The local magnetic moment of Ti:ZnO is calculated from first principles by using the corrected-band-gap scheme (CBGS). The result shows that the system is magnetic with the magnetization of 0.699 [mu] per dopant. The origin of the local magnetic moment is considered to be the impurity band partially ... [J. Appl. Phys. 111, 07C301 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Direct calorimetric measurements of isothermal entropy change on single crystal W-type hexaferrites at the spin reorientation transitionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We report on the magnetic field induced isothermal entropy change, Deltas(H, T), of W-type ferrite with CoZn substitution. Entropy measurements are performed by direct calorimetry. Single crystals of the composition BaCoZnFeO, prepared by the flux method, are measured at different fixed temperatures ... [J. Appl. Phys. 111, 07A905 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Magnetic properties and microstructures of iron oxide@mesoporous silica core-shell composite for applications in magnetic dye separationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this report, hollow mesoporous silica (HMS) and iron oxide-hollow mesoporous silica (FeO@HMS) core-shell composite were prepared by a one-step facile fabrication method. Transmission electron microscopy, X-ray diffraction, N adsorptiondesorption isotherms, and vibrating sample magnetometer were u ... [J. Appl. Phys. 111, 07B301 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Phase instability of magnetic ground state in antiperovskite MnZnN: Giant magnetovolume effects related to magnetic structureEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
T. Hamada and K. Takenaka We verified the intimate relation between magnetism and volume in MnZnN. The sample sintered at 900 degrees C is characterized by the Gamma triangular antiferromagnetic (AF) state with larger volume below 170 K. However, for the sample sintered at 700 degrees C, the re-entrant phase transition app ... [J. Appl. Phys. 111, 07A904 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Berry phase from a randomly fluctuating magnetic fieldEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
R. Skomski The quantum-mechanical Berry phase due to a randomly fluctuating magnetic field is calculated by exploiting an analogous random-walk problem in polymer physics. The phase depends on the time correlations of the magnetic field, despite the adiabatic nature of the Berry phase. A probability distributi ... [J. Appl. Phys. 111, 07E102 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Sound velocity measurements of tantalum under shock compression in the 10-110 GPa rangeEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Jianbo Hu, Chengda Dai, Yuying Yu, Zijiang Liu, Ye Tan et al. The high-pressure melting curve of tantalum (Ta) has been the center of a long-standing controversy. Sound velocities along the Hugoniot curve are expected to help in understanding this issue. To that end, we employed a direct-reverse impact technique and velocity interferometry to determine sound v ... [J. Appl. Phys. 111, 033511 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Strain enhanced spin polarization in graphene with Rashba spin-orbit coupling and exchange effectsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ying-Tao Zhang and Feng Zhai We investigate spin polarization and valley-dependent transport in bulk graphene in the presence of the exchange splitting field, the pseudo magnetic field, and Rashba spin-orbit coupling (SOC). It is demonstrated that Rashba SOC and the pseudo magnetic field cannot produce a spin polarization compo ... [J. Appl. Phys. 111, 033705 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

The study of pressure induced structural phase transition in spin-frustrated YbTiO pyrochloreEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A. K. Mishra, H. K. Poswal, Surinder M. Sharma, Surajit Saha, D. V. S. Muthu et al. Our in situ x-ray diffraction and Raman measurements of YbTiO pyrochlore show that it undergoes a reversible structural phase transition from cubic pyrochlore to a monoclinic phase at ~28.6 GPa. Analysis of the x-ray data shows the transition to be thermodynamically first order and the high pressure ... [J. Appl. Phys. 111, 033509 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

The thermodynamic limits of magnetic recordingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
H. J. Richter, A. Lyberatos, U. Nowak, R. F. L. Evans, and R. W. Chantrell Thermal stability of the recorded information is generally thought to set the limit of the maximum possible density in magnetic recording. It is shown that basic thermodynamics always cause the probability of success of the write process to be less than 100%. This leads to a thermally induced error ... [J. Appl. Phys. 111, 033909 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research

Superconductivity in the vicinity of ferromagnetism in oxygen free perovskite MgCNi: An experimental and density functional theory studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We report synthesis, structural, magnetic, specific heat, and density functional theory (DFT) studies on the MgCNi superconductor. Polycrystalline MgCNi samples are synthesized through the standard solid state reaction route and found to crystallize in the cubic perovskite structure with space group ... [J. Appl. Phys. 111, 033907 (2012)] published Mon Feb 6, 2012. (Source: Journal of Applied Physics)
Source: Journal of Applied Physics - February 6, 2012 Category: Physics Source Type: research