Results 231 to 240 of about 2,820,589 (269)

Enhanced Ultraviolet Response of ${\rm p}\hbox{-}{\rm Si}/{\rm SiO}_{x}/{\rm i}\hbox{-}{\rm ZnO}/{\rm n}\hbox{-}{\rm ZnO}$ Photodetectors

IEEE Photonics Technology Letters, 2014
Ultraviolet (UV) response of p-Si/i-ZnO/n-ZnO (p-i-n) heterojunction photodetectors (HPDs) was dramatically enhanced by inserting a thin SiOx layer to form a p-Si/SiOx/ i-ZnO/n-ZnO structure. It was found that the leakage current of p-i-n HPDs is largely reduced by about three orders compared with that of conventional p-n HPDs.
Jun-Dar Hwang, Din-Han Wu, Sheng-Beng Hwang   +2 more
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Structural and Magnetic Properties of ${\rm La}_{0.7}{\rm Sr}_{0.3}{\rm Mn}_{1-{\rm x}}{\rm Cr}_{\rm x}{\rm O}_{3}$$({\rm x}\leq 0.5)$

IEEE Transactions on Magnetics, 2010
Magnetic and structural properties of La0.7Sr0.3Mn1-xCrxO3 (x = 0.05, 0.10, 0.20, 0.30, 0.40 and 0.50) have been studied using neutron and x-ray diffraction and magnetic measurements. All samples are found to be of single phase. At 12 K, we find only ferromagnetic ordering for x < 0.30 and coexisting ferromagnetic and antiferromagnetic domains for x ...
Thomas F. Creel, Jinbo B. Yang, Mehmet Kahveci, Jagat Lamsal, S. K. Malik, Sylvio Quezado, Oran A. Pringle, William B. Yelon, William J. James   +8 more
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Magnetism of $L1_{0}{\rm Fe}_{50-{\rm x}}{\rm Co}_{\rm x}{\rm Pt}_{50}$ Films

IEEE Transactions on Magnetics, 2013
Films of L10-structure Fe50-xCoxPt50 films are synthesized by co-sputtering Fe, Co and Pt on (001) MgO substrates and Si substrates with in-situ heating at 830°C. The nanostructures and magnetic properties of the films are characterized by X-ray diffraction, transmission electron microscopy and SQUID.
Yi Liu, David J. Sellmyer
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ESR Studies on ${\rm Bi}_{0.5}{\rm Ca}_{0.5}{\rm Mn}_{0.95}{\rm TE}_{0.05}{\rm O}_{3}$ (${\rm TE}={\rm V}$, Cu and Zn)

IEEE Transactions on Magnetics, 2011
In this work, the effect of transition element ( TE=V, Cu, and Zn) substitution at Mn site on the electron spin resonance (ESR) of Bi0.5Ca0.5MnO3 was explored. The temperature (T) dependent double integrated intensity (DI) and peak to peak linewidth provide the estimation of charge ordering (CO) temperature TCO, long-range antiferromagnetic (AFM) onset
D. Vijayan, Joji Kurian, R. Singh
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Differentiation of tautomers by ion cyclotron resonance spectrometry: \documentclass{article}\pagestyle{empty}\begin{document}${\rm (CH}_{\rm 3} {\rm)}_{\rm 2} \mathop {\rm N}\limits^{\rm + } {\rm = CH}_{\rm 2} {\rm vs H}_{\rm 3} {\rm C}\mathop {\rm N}\limits^{\rm + } {\rm H = CHCH}_{\rm 3}$\end{document}

Organic Mass Spectrometry, 1974
AbstractIon cyclotron resonance spectrometry and deuterium labeling have been used to determine that nondecomposing \documentclass{article}\pagestyle{empty}\begin{document}${\rm (CH}_{\rm 3} {\rm)}_{\rm 2} \mathop {\rm N}\limits^{\rm + } {\rm = CH}_{\rm 2}$\end{document} ions do not isomerize to \documentclass{article}\pagestyle{empty}\begin{document}${
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Correlation Between Enhanced ${\rm T}_{\rm c}$, the Unit Cell Volume and AC Magnetic Shielding in Argon Preheated $({\rm Y}_{1-{\rm x}}{\rm Eu}_{\rm x})({\rm SrBa}){\rm Cu}_{3}{\rm O}_{6+{\rm z}}$

IEEE Transactions on Applied Superconductivity, 2011
We report here on the preparation, X-ray diffraction with Rietveld refinement, resistivity and AC magnetic susceptibility measurements of (Y1-xEux)(SrBa)Cu3O6.94. Each sample was subject to two types of heat treatment: oxygen annealing [O] and argon annealing followed by oxygen annealing [AO].
Essediq Youssef El Yakoubi, Abdelhakim Nafidi, Redwane Morghi, Mohamed Braigue, Hassan Chaib, Jamal Hemine, M. Srinivasa Vinod, Mustapha Massaq, Ramanathaan Suryanarayanan   +8 more
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Magnetostriction and Effective Magnetic Anisotropy of Nanocrystalline ${\rm Ni}_{\rm x}{({\rm Fe}_{0.5}{\rm Co}_{0.5})}_{73.5-{\rm x}}{\rm Cu}_{1}{\rm Nb}_{3}{\rm Si}_{13.5}{\rm B}_{9}$ Alloys

IEEE Transactions on Magnetics, 2011
Ni-content dependence on magnetostriction, effective magnetic anisotropy and initial permeability for as-quenched amorphous Nix(Fe0.5Co0.5)73.5-xNb3Si13.5B9Cu1 (x=0 ~ 30) alloys annealed at 500°C was investigated. XRD showed that all the amorphous samples were partially nanocrystallized after annealing and a two-phase nanocrystalline structure with α ...
Zhi Wang, Rui-min Shi, Yun-yun Jia, Jun-na Yan, Jing Yang, Bin Fu, Wen-rong Yang   +6 more
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Enhancement of ${\rm T}_{\rm c}$, Shielding and Irreversibility Line in Argon Preheated ${\rm Ln}({\rm SrBa}){\rm Cu}_{3}{\rm O}_{6+{\rm z}}$

IEEE Transactions on Applied Superconductivity, 2007
We report here on the preparation, AC magnetic susceptibility and resistivity measurements of LnSrBaCu3O6+z (Ln = rare earth = Eu, Sm, Nd). Each sample was subject to two types of heat treatment: oxygen annealing [O] and argon annealing followed by oxygen annealing [AO].
Brahim Bouallal, Abdelhakim Nafidi, Abdelhamid El Kaaouachi, Hassan Chaib, Abdellatif El Azrak, Mimoun Zazoui   +5 more
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Czochralski Growth and Scintillation Properties of ${\rm Ce}:({\rm Gd},{\rm Y},{\rm Lu})_3$$({\rm Al},{\rm Ga})_5{\rm O}_{12}$ Single Crystals

IEEE Transactions on Nuclear Science, 2014
1-inch size Ce1%:Gd2Lu1Al2Ga3O12, Gd1Lu2Al2Ga3O12, Gd1Y2Al1.5Ga3.5O12 and Lu2Y1Al2Ga3O12 were grown by the Czhocralski (Cz) method. The EPMA techniques is employed to check their chemical composition. Luminescence and scintillation properties were also evaluated.
Kei Kamada, Petr Prusa, Martin Nikl, Karel Blazek, Takanori Endo, Kousuke Tsutsumi, Shunsuke Kurosawa, Yuui Yokota, Akira Yoshikawa   +8 more
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Overcoming Temperature Limitations in Phase Change Memories With Optimized ${\rm Ge}_{\rm x}{\rm Sb}_{\rm y}{\rm Te}_{\rm z}$

IEEE Transactions on Electron Devices, 2013
Phase change memory (PCM) is the most mature among the novel memory concepts. Embedded PCM technology can be a real breakthrough for process cost saving and performances. Nevertheless, for specific applications some improvement in high temperature data retention characteristics is needed.
Paola Zuliani, Enrico Varesi, Elisabetta Palumbo, Massimo Borghi, Innocenzo Tortorelli, Davide Erbetta, Giovanna Dalla Libera, Nicola Pessina, Anna Gandolfo, Carlo Prelini, Leonardo Ravazzi, Roberto Annunziata   +11 more
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