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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 40.

Spectrally resolved detection of mixed acoustic vibrations by photorefractive interferometry
Jichuan Xiong and Christ Glorieux A two-wave mixing photorefractive interferometry method in an anisotropic diffraction scheme, intended to selectively detect an acoustic vibration component at a specific frequency of interest in the presence of strong vibrations at other frequencies, is presented and validated by simulations and ex ... [J. Appl. Phys. 113, 054502 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Non-equilibrium critical point in Be-doped low-temperature-grown GaAs
Mohd Ambri Mohamed, Pham Tien Lam, and N. Otsuka We studied the transition process of antisite arsenic defects in Be-doped low-temperature-grown GaAs layers by measuring the magnetization. This material exhibits bistability at non-equilibrium; at a fixed temperature in a fixed magnetic field a sample relaxes towards two different states, depending ... [J. Appl. Phys. 113, 053504 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Electronic structure, surface morphology, and topologically protected surface states of SbTe thin films grown on Si(111)
L. Plucinski, A. Herdt, S. Fahrendorf, G. Bihlmayer, G. Mussler et al. We have performed a combined spectroscopy and microscopy study on surfaces of SbTe/Si(111) thin films exposed to air and annealed under ultra-high vacuum conditions. Scanning tunneling microscopy images, with atomic resolution present in most areas of such processed surfaces, show a significant amou ... [J. Appl. Phys. 113, 053706 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Thermal conductivity of 4H-SiC single crystals
Rusheng Wei, Sheng Song, Kun Yang, Yingxin Cui, Yan Peng et al. Thermal diffusivity and specific heat of 4H-SiC crystals as a function of temperature are measured, respectively, from room temperature to 600 degrees C. The thermal conductivity normal to c-axis was calculated from the measured data for both N-type and V-doped semi-insulating (SI) 4H-SiC single cr ... [J. Appl. Phys. 113, 053503 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Quantum oscillations of nonlinear response in electron systems with variable density
Scott Dietrich, Sean Byrnes, Sergey Vitkalov, A. V. Goran, and and A. A. Bykov Quantum oscillations of dissipative resistance are observed in response to electric current applied to a GaAs quantum well with variable two dimensional electron density placed in quantizing magnetic fields. At a fixed magnetic field, the period of the current induced oscillations depends linearly o ... [J. Appl. Phys. 113, 053709 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Electrical switching of quantum tunneling through p-n junction in a quantum spin Hall bar
Fang Cheng, L. Z. Lin, L. B. Zhang, and Guanghui Zhou We demonstrate theoretically electrical switching of the edge state transport via a transverse electric field in a quantum spin Hall bar. By tuning the electric fields, the Fermi energy and the gate voltage, the edge channels in the both topological insulator (TI)/band insulator (BI) and TI/TI p-n j ... [J. Appl. Phys. 113, 053708 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Pressure dependence of magnetic transition temperature in Li[LiMn]O (0
Kazuhiko Mukai, Daniel Andreica, Yutaka Ikedo, Hiroshi Nozaki, Martin Mansson et al. In order to study a change in electrochemical, structural, and magnetic properties for lithium manganese oxide spinels Li[LiMn]O (LMO) with 0
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Nonlinear susceptibility and dynamic hysteresis loops of magnetic nanoparticles with biaxial anisotropy
Bachir Ouari, Serguey V. Titov, Halim El Mrabti, and Yuri P. Kalmykov The nonlinear ac susceptibility and dynamic magnetic hysteresis (DMH) of a single domain ferromagnetic particle with biaxial anisotropy subjected to both external ac and dc fields of arbitrary strength and orientation are treated via Brown's continuous diffusions model [W. F. Brown, Jr., Phys. Rev. ... [J. Appl. Phys. 113, 053903 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Mechanical self-confinement to enhance energy storage density of antiferroelectric capacitors
S. E. Young, J. Y. Zhang, W. Hong, and X. Tan The energy storage density of electrical capacitors utilizing antiferroelectric compositions PbNb[(ZrSn)Ti]O as dielectrics is measured at a series of temperatures in a series of dielectric compositions with and without self-confinement. Under the applied electric field of 70 kV/cm, a maximum energy ... [J. Appl. Phys. 113, 054101 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Two-dimensional space-resolved emission spectroscopy of laser ablation plasma in water
Ayumu Matsumoto, Ayaka Tamura, Kazuhiro Fukami, Yukio H. Ogata, and Tetsuo Sakka We developed a method for two-dimensional space-resolved emission spectroscopy of laser-induced plasma in water to investigate the spatial distribution of atomic species involved in the plasma. Using this method, the laser ablation plasma produced on a Cu target in 5 mM NaCl aqueous solution was exa ... [J. Appl. Phys. 113, 053302 (2013)] published Mon Feb 4, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Magnetoimpedance dependence on width in CoFeSiB amorphous alloy ribbons
L. Gonzalez-Legarreta, V. M. Prida, B. Hernando, M. Ipatov, V. Zhukova et al. The magnetoimpedance (MI) response of near-zero magnetostriction Co-based amorphous ribbons with different width ranging from 0.35 mm to 0.90 mm was investigated in the frequency range of 10 MHz3.5 GHz. It was found that the wider ribbon displays the softer magnetic behavior and larger magnetoimpeda ... [J. Appl. Phys. 113, 053905 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Length dependence of carbon-doped BN nanowires: A-D Rectification and a route to potential molecular devices
M. Qiu and K. M. Liew Based on the first-principles approach, electronic transport properties of different lengths of carbon-doped boron-nitrogen nanowires, capped with two thiols as end groups connected to Au electrodes surfaces, are investigated. The results show that rectifying performance and negative differential re ... [J. Appl. Phys. 113, 054305 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Elastocaloric and magnetocaloric effects in Ni-Mn-Sn(Cu) shape-memory alloy
Pedro O. Castillo-Villa, Lluis Manosa, Antoni Planes, Daniel E. Soto-Parra, J. L. Sanchez-Llamazares et al. We have studied magnetocaloric and elastocaloric properties of a Ni-Mn-Sn(Cu) metamagnetic shape-memory alloy undergoing a magneto-structural transition (martensitic type) close to room temperature. Changes of entropy have been induced by isothermally applying both mechanical (uniaxial stress) and m ... [J. Appl. Phys. 113, 053506 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

High-pressure synthesis and in-situ high pressure x-ray diffraction study of cadmium tetraphosphide
Pei Wang, Fang Peng, Li Lei, Haihua Chen, Qiming Wang et al. Pure-phase polycrystalline cadmium tetraphosphide (CdP) has been successfully synthesized under high pressures in a large volume cubic press, and the pressuretemperature (P-T) formation boundary of CdP from the CdP binary system has been determined. The equation of state of monoclinic CdP has also b ... [J. Appl. Phys. 113, 053507 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Lamb wave band gaps in a double-sided phononic plate
Peng Wang, Tian-Ning Chen, Kun-Peng Yu, and Xiao-Peng Wang In this paper, we report on the theoretical investigation of the propagation characteristics of Lamb wave in a phononic crystal structure constituted by a square array of cylindrical stubs deposited on both sides of a thin homogeneous plate. The dispersion relations, the power transmission spectra, ... [J. Appl. Phys. 113, 053509 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Evaluation of field emission parameters in a copper nano-tip based diode
Abhishek Kumar Singh and Jitendra Kumar Copper nano-tip based diode structure with a gap of ~120 nm has been fabricated by milling of a thin metallic film with a 30 kV focused gallium ion beam at a current of 100 pA. Its current-voltage characteristics measured at a pressure of ~10 mbar is shown to follow the Fowler-Nordheim (F-N) field e ... [J. Appl. Phys. 113, 053303 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Suppression of spatial hole burning and pulse stabilization for actively modelocked quantum cascade lasers using quantum coherent absorption
S. S. Shimu, A. Docherty, M. A. Talukder, and C. R. Menyuk We theoretically study of an actively modelocked quantum cascade laser in which we incorporate quantum coherent absorption by interleaving quantum coherent absorbing periods with gain periods. We show that this absorption suppresses the spatial hole burning that is responsible for pulse instability. ... [J. Appl. Phys. 113, 053106 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Electrical transport in hydrogen-aluminium Co-doped ZnO and ZnMgO films: Relation to film structure and composition
A. Bikowski and K. Ellmer ZnO:Al and ZnMgO:Al films have been deposited in Ar/H atmospheres by magnetron sputtering from oxidic targets at two substrate temperatures: room temperature and 300 degrees C. The electrical transport parameterscarrier concentration, resistivity, and Hall mobilityhave been measured and related to ... [J. Appl. Phys. 113, 053710 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Bulk modulus and structural changes of carbon nitride CN(CH) under pressure: The strength of CN single bond
Masaya Sougawa, Kenichi Takarabe, Yoshihisa Mori, Taku Okada, Takehiko Yagi et al. The experimental bulk modulus, B, of CN(CH) is determined to be 258 3.4 GPa from the analysis of high-pressure (up to 30 GPa) X-ray diffraction patterns obtained using synchrotron radiation. This bulk modulus is 40% lower than that of diamond. At the level of a combined analysis of lattice constant ... [J. Appl. Phys. 113, 053510 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Nitric acid compensated aluminum oxide dielectrics with improved negative bias reliability and positive bias temperature response
Chien-Chih Lin and Jenn-Gwo Hwu The room-temperature nitric acid (HNO) compensation method is introduced to effectively improve the dielectric quality of ultrathin aluminum oxide (AlO) gate dielectrics under low thermal budget consideration. The physical properties, electrical characteristics, and temperature response of AlO metal ... [J. Appl. Phys. 113, 054103 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Carrier dynamics and photoluminescence quenching mechanism of strained InGaSb/AlGaSb quantum wells
Nahid A. Jahan, Claus Hermannstadter, Hirotaka Sasakura, Thomas J. Rotter, Pankaj Ahirwar et al. GaSb based quantum wells (QWs) show promising optical properties in near-infrared spectral range. In this paper, we present photoluminescence (PL) spectroscopies of InGaSb/AlGaSb QWs and discuss the possible thermal quenching and non-radiative carrier recombination mechanisms of the QW structures. T ... [J. Appl. Phys. 113, 053505 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Enhanced acousto-optic interaction in two-dimensional phoxonic crystals with a line defect
This study presents acousto-optic interaction of optical waves in a two-dimensional phoxonic crystal with a line defect. Because of dual photonic and phononic band gaps generated in the phoxonic crystal, optical waves and acoustic modes can be guided and amplified, respectively, along the line defec ... [J. Appl. Phys. 113, 053508 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Structure and multiferroic properties of BiDyFeMgTiO solid solution
Nan Li, Jiangtao Wu, Yaqi Jiang, Zhaoxiong Xie, Lansun Zheng et al. Chemical modification is proven to be an effective way to improve the properties of perovskite BiFeO (BFO). In this paper, we studied the effects of the A-site Dy ion substitution on the structure and multiferroic properties of BFO in which the Fe ion on the B-site is partially co-substituted for by ... [J. Appl. Phys. 113, 054102 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Optimal width of barrier region in X/gamma-ray Schottky diode detectors based on CdTe and CdZnTe
L. A. Kosyachenko, T. Aoki, C. P. Lambropoulos, V. A. Gnatyuk, S. V. Melnychuk et al. The spectral distribution of quantum detection efficiency of X- and gamma-ray Schottky diodes based on semi-insulating CdTe or CdZnTe crystals is substantiated and obtained in analytical form. It is shown that the width of the space charge region (SCR) of 640 [mu]m at zero bias in CdTe (CdZnTe) Scho ... [J. Appl. Phys. 113, 054504 (2013)] published Tue Feb 5, 2013.
Source: Journal of Applied Physics - February 5, 2013 Category: Physics Source Type: research

Femtosecond diffraction dynamics of laser-induced periodic surface structures on fused silica
S. Hohm, A. Rosenfeld, J. Kruger, and J. Bonse The formation of laser-induced periodic surface structures (LIPSS) on fused silica upon irradiation with linearly polarized fs-laser pulses (50 fs pulse duration, 800 nm center wavelength) is studied experimentally using a transillumination femtosecond time-resolved (0.1 ps-1 ns) pump-probe diffract ... [Appl. Phys. Lett. 102, 054102 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Effect of substrate surface roughness on electric current induced flow of liquid metals
Santanu Talukder, Nalla Somaiah, and Praveen Kumar Electric current can induce long-range flow of liquid metals over a conducting substrate. This work reports on the effect of the substrate surface roughness on the liquid metal-front velocity during such a flow. Experiments were conducted by passing electric current through liquid gallium placed ove ... [Appl. Phys. Lett. 102, 054101 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Enhanced performance in polymer solar cells by the use of a halogenated indium tin oxide anode
Shizhao Zheng and King Y. Wong Use of a halogenated, surface-modified indium tin oxide (ITO) anode was found to enhance the photovoltaic performance of a bulk heterojunction (BHJ) polymer solar cell using poly[N-9[prime]-heptadecanyl-2,7-carbazole-alt-5,5-(4[prime],7[prime]-di-2-thienyl-2[prime],1[prime],3[prime]-benzothiadiazole ... [Appl. Phys. Lett. 102, 053302 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Efficient electron injection from solution-processed cesium stearate interlayers in organic light-emitting diodes
G. A. H. Wetzelaer, A. Najafi, R. J. P. Kist, M. Kuik, and P. W. M. Blom The electron-injection capability of solution-processed cesium stearate films in organic light-emitting diodes is investigated. Cesium stearate, which is expected to exhibit good solubility and film formation due to its long hydrocarbon chain, is synthesized using a straightforward procedure. Light- ... [Appl. Phys. Lett. 102, 053301 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Near-field radiative heat transfer between doped silicon nanowire arrays
Soumyadipta Basu and Liping Wang In this letter, we investigate the near-field radiative heat transfer between two doped silicon nanowire arrays separated by a vacuum gap. Using effective medium theory and fluctuational electrodynamics, the radiative heat transfer is calculated for the silicon nanowire arrays with different filling ... [Appl. Phys. Lett. 102, 053101 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Flexible, compressible, hydrophobic, floatable, and conductive carbon nanotube-polymer sponge
Jin-Woo Han, Beomseok Kim, Jing Li, and M. Meyyappan A flexible, compressible, hydrophobic, ice-repelling, floatable, and conductive carbon nanotube (CNT)-polydimethylsiloxane (PDMS) sponge is presented. The microporous sponge-like PDMS scaffold fabricated with a sugar cube template is capable of CNT uptake. The CNT-PDMS sponge (CPS) is deformable and ... [Appl. Phys. Lett. 102, 051903 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Cu out-diffusion in kesteritesA transmission electron microscopy specimen preparation artifact
J. Timo Watjen, Jonathan J. Scragg, Marika Edoff, Stefano Rubino, and Charlotte Platzer-Bjorkman Solar cells based on CuZnSn(S,Se) absorber layers have received a growing amount of interest. Typically a Mo(S,Se) layer is formed at the CuZnSn(S,Se)/Mo interface during processing. Transmission electron microscopy (TEM) analyses showed the presence of Cu in the Mo(S,Se) which was thought to cause ... [Appl. Phys. Lett. 102, 051902 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Direct and quantitative broadband absorptance spectroscopy on small objects using Fourier transform infrared spectrometer and bilayer cantilever probes
Wei-Chun Hsu, Jonathan K. Tong, Bolin Liao, Brian R. Burg, and Gang Chen A measurement platform is introduced that combines a bilayer cantilever probe with a Fourier transform infrared spectrometer to measure absolute spectral absorptance between wavelengths of 3 [mu]m and 18 [mu]m directly and quantitatively. The enhanced sensitivity provided by the cantilever probe ena ... [Appl. Phys. Lett. 102, 051901 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Enhancement of the performance of InAs quantum dots solar cell by surface modification using Poly-L-Lysine homopolymers
Y. F. Makableh, R. Vasan, S. Lee, and O. M. Manasreh The enhancement of InAs quantum dots solar cell was reported for surface modification by implementing Poly-L-Lysine (PLL) homopolymers as an anti-reflection coating. Dip coating method was used to coat the solar cell surface with PLL. The current-voltage, spectral response, and external quantum effi ... [Appl. Phys. Lett. 102, 051904 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Differential scanning calorimetric determination of the thermal properties of amorphous CoFeB and CoFeB thin films
Yuan-Tsung Chen, S. H. Lin, and W. H. Hsieh The thermal stability of CoFeB and CoFeB thin films are investigated by non-isothermal and isothermal thermal analysis. The differential scanning calorimetry results of amorphous CoFeB and CoFeB thin films showed the crucial glass forming ability index, gamma and gamma. The Kissinger formula was app ... [Appl. Phys. Lett. 102, 051905 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

A high-temperature piezoelectric linear actuator operating in two orthogonal first bending modes
Jianguo Chen, Zhijiang Chen, Xiaotian Li, and Shuxiang Dong Conventionally, piezoelectric ultrasonic linear actuators operate in longitudinal and bending combination (degenerate) modes for producing an elliptic motion which drives a slider moving linearly. With the increasing temperature, the degenerate mode will split into two separated modes again, resulti ... [Appl. Phys. Lett. 102, 052902 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Confirmation of the monoclinic Cc space group for the ground state phase of Pb(ZrTi)O: A combined synchrotron X-ray and neutron powder diffraction study
Ravindra Singh Solanki, Sunil Kumar Mishra, Anatoliy Senyshyn, Songhak Yoon, Sunggi Baik et al. The low temperature antiferrodistortive phase transition in a pseudo-tetragonal composition of Pb(ZrTi)O (PZT) with x = 0.525 is investigated through a combined synchrotron x-ray and neutron powder diffraction study. It is shown that the superlattice peaks cannot be correctly accounted for in the Ri ... [Appl. Phys. Lett. 102, 052903 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Mechanic and electromechanic effects in biaxially stretched liquid crystal elastomers
Ricardo Diaz-Calleja, Pedro Llovera-Segovia, Evaristo Riande, and Alfredo Quijano Lopez The effect of combined electromechanic force fields in nematic side chain liquid crystal elastomers will be analyzed. A biaxially stretched plate in the x- and y-directions under an electric field applied in the perpendicular direction to the plate will be considered. A neo-Hookean model is chosen, ... [Appl. Phys. Lett. 102, 052901 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

NbTiN superconducting nanowire detectors for visible and telecom wavelengths single photon counting on Si3N4 photonic circuits
C. Schuck, W. H. P. Pernice, and H. X. Tang We demonstrate niobium titanium nitride superconducting nanowires patterned on stoichiometric silicon nitride waveguides for detecting visible and infrared photons. The use of silicon nitride on insulator on silicon substrates allows us to simultaneously realize photonic circuits for visible and inf ... [Appl. Phys. Lett. 102, 051101 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Role of photo-assisted tunneling in time-dependent second-harmonic generation from Si surfaces with ultrathin oxides
Yong Q. An, J. Price, Ming Lei, and M. C. Downer Optical second-harmonic generation (SHG) from Si surfaces covered with nanometer-thin SiO varies with the laser exposure time because of photo-injection and charge trapping. We use UV lamp excitation to decompose the effects of photo-injection and charge trapping on the time-dependence of SHG of 1.6 ... [Appl. Phys. Lett. 102, 051602 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

The source of the threading dislocation in GaSb/GaAs hetero-structures and their propagation mechanism
Yi Wang, P. Ruterana, S. Kret, S. El Kazzi, L. Desplanque et al. The misfit and threading dislocations during GaSb epitaxy on GaAs substrate were investigated by weak beam dark field and high angle dark field scanning transmission electron microscopy. The geometric phase analysis and dislocation density tensor analysis were next used to analyze the strain around ... [Appl. Phys. Lett. 102, 052102 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Versatile scanning tunneling microscopy with 120 ps time resolution
We describe a fully ultra-high vacuum compatible scanning tunneling microscope (STM) optimized for radio-frequency signals. It includes in-situ exchangeable tips adapted to high frequency cabling and a standard sample holder, which offer access to the whole range of samples typically investigated by ... [Appl. Phys. Lett. 102, 051601 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Identification of the native defect doping mechanism in amorphous indium zinc oxide thin films studied using ultra high pressure oxidation
Sunghwan Lee and David C. Paine The mechanism of native defect doping in amorphous In-Zn-O (a-IZO) has not previously been established but is likely associated with native oxygen defect doping. We have used high pressure oxidation and defect equilibrium analysis to show a 1/6 power dependence of carrier density on oxygen fugacity ... [Appl. Phys. Lett. 102, 052101 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Selective A- or B-site single termination on surfaces of layered oxide SrLaAlO
A. Biswas, P. B. Rossen, J. Ravichandran, Y.-H. Chu, Y.-W. Lee et al. We demonstrate that thermal annealing in cation controlled environments is an effective means to obtain atomically flat and chemically single terminated surfaces of a layer structured substrate. The effectiveness of the cation controlled annealing method is proved with SrLaAlO, which is a representa ... [Appl. Phys. Lett. 102, 051603 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Correlation between Ti source/drain contact and performance of InGaZnO-based thin film transistors
Kwang-Hyuk Choi and Han-Ki Kim Ti contact properties and their electrical contribution to an amorphous InGaZnO (a-IGZO) semiconductor-based thin film transistor (TFT) were investigated in terms of chemical, structural, and electrical considerations. TFT device parameters were quantitatively studied by a transmission line method. ... [Appl. Phys. Lett. 102, 052103 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Phosphorus doping of 4H SiC by liquid immersion excimer laser irradiation
Akihiro Ikeda, Koji Nishi, Hiroshi Ikenoue, and Tanemasa Asano Phosphorus doping of 4H SiC is performed by KrF excimer laser irradiation of 4H SiC immersed in phosphoric acid. Phosphorus is incorporated to a depth of a few tens of nanometers at a concentration of over 10/cm without generating significant crystal defects. Formation of a pn junction diode with an ... [Appl. Phys. Lett. 102, 052104 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Reconfigurable ground states in connected double-dot system
S. Jain, F. Y. Fradin, J. E. Pearson, V. Novosad, and S. D. Bader Controlling the polarity of a vortex core in patterned magnetic arrays of double-dot systems was recently shown via a nonlinear spin dynamics manipulation procedure. In the present work, we utilize the microwave absorption amplitude to monitor this polarity switching transition as the excitation fie ... [Appl. Phys. Lett. 102, 052401 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Introducing a well-ordered volume porosity in 3-dimensional gold microcantilevers
Cedric Ayela, Helene Lalo, and Alexander Kuhn The purpose of the present work is the introduction of a combined bottom-up and top-down approach to generate 3-dimensional gold microcantilevers, where the porosity in the volume of the free-standing microstructure is well-controlled. By combining the elaboration of a colloidal crystal, followed by ... [Appl. Phys. Lett. 102, 053501 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

In-situ observation of nickel oxidation using synchrotron based full-field transmission X-ray microscopy
Andrew M. Kiss, William M. Harris, Steve Wang, Joan Vila-Comamala, Alex Deriy et al. An in situ imaging-based approach is reported to study chemical reactions using full-field transmission x-ray microscopy (TXM). Ni particles were oxidized at temperatures between 400 and 850 degrees C in the TXM to directly observe their morphology change while the chemical composition is monitored ... [Appl. Phys. Lett. 102, 053902 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Enhancing the efficiency of SnS solar cells via band-offset engineering with a zinc oxysulfide buffer layer
Prasert Sinsermsuksakul, Katy Hartman, Sang Bok Kim, Jaeyeong Heo, Leizhi Sun et al. SnS is a promising earth-abundant material for photovoltaic applications. Heterojuction solar cells were made by vapor deposition of p-type tin(II) sulfide, SnS, and n-type zinc oxysulfide, Zn(O,S), using a device structure of soda-lime glass/Mo/SnS/Zn(O,S)/ZnO/ITO. A record efficiency was achieved ... [Appl. Phys. Lett. 102, 053901 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research

Near-field optical microscopy with an infra-red free electron laser applied to cancer diagnosis
A. D. Smith, M. R. F. Siggel-King, G. M. Holder, A. Cricenti, M. Luce et al. We show that the combination of a scanning near field optical microscope and an infra-red free electron laser yields chemical images with sub-cellular spatial resolution that have the potential to provide a diagnostic for oesophageal adenocarcinoma. ... [Appl. Phys. Lett. 102, 053701 (2013)] published Mon Feb 4, 2013.
Source: Applied Physics Letters - February 5, 2013 Category: Physics Source Type: research