Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Weidong Si"'
Autor:
Toshinori Ozaki, Lijun Wu, Cheng Zhang, Jan Jaroszynski, Weidong Si, Juan Zhou, Yimei Zhu, Qiang Li
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Simultaneous increase of critical temperature and critical current in superconductors is desirable for application purpose, but very difficult to realize. Here, Ozaki et al. report a simultaneous enhancement of Tc and Jc in FeSe0.5Te0.5films with cas
Externí odkaz:
https://doaj.org/article/76f57ee4b31c4e2b8f1f9f6a4076c52f
Autor:
Jan Jaroszynski, Weidong Si, Juan Zhou, Toshinori Ozaki, Yimei Zhu, Cheng Zhang, Qiang Li, Lijun Wu
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Nature Communications
Nature Communications
The critical temperature Tc and the critical current density Jc determine the limits to large-scale superconductor applications. Superconductivity emerges at Tc. The practical current-carrying capability, measured by Jc, is the ability of defects in
Publikováno v:
Superconductor Science and Technology. 31:049501
Publikováno v:
Superconductor Science and Technology. 31:024002
The loss-less electrical current-carrying capability of type II superconductors, measured by the critical current density J c, can be increased by engineering desirable defects in superconductors to pin the magnetic vortices. Here, we demonstrate tha
Publikováno v:
Chemistry of Materials. 19:618-623
Pulsed-laser deposition was employed to grow epitaxial thin films of the oxynitride perovskite BaTaO2N on a conducting SrRuO3 buffer layer deposited on a 100-cut SrTiO3 single-crystal substrate. Phase purity and epitaxy were optimized at a substrate
Publikováno v:
Journal of Phase Equilibria and Diffusion. 27:684-690
The events leading to the failure of an alloy grade HP Nb ethylene pyrolysis heater tubing were examined. X-ray maps indicated that a complex oxide coating, which inhibits carbon (C) diffusion, forms on the process side of the tubing during service.
Publikováno v:
Scripta Materialia. 52:735-738
Silicon carbide was successfully deposited onto a heated HK40 substrate. An array of characterization techniques (scanning electron microscopy, atomic force microscopy, and scratch tests) demonstrated that the processing conditions were suitable for
Autor:
I. Bozovic, Michael L. Schneider, A. Krapf, M. S. Williamsen, Weidong Si, Yuhang Ren, Yuri D. Glinka, M. Abrecht, Jure Demsar, J. O. Printz, Roman Sobolewski, Arsen Soukiassian, R. Manzke, D. Ariosa, A. Klimov, Gunter Lüpke, Prasenjit Guptasarma, K. E. Downum, Marshall Onellion, X. H. Zeng, Ying Xu, Norman Tolk, Davor Pavuna, A. J. Taylor, Xiaoxing Xi, S. Rast
Publikováno v:
The European Physical Journal B - Condensed Matter. 36:327-334
We report the transient optical pump-probe reflectivity measurements on single and double layer cuprate single crystals and thin films of ten different stoichiometries. We find that with sufficiently low fluence the relaxation time (τR) of all sampl
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 13:2799-2802
It has long been known that oxygen doping, cation doping and strain all strongly influence the superconducting transition temperature, T/sub c/, of high temperature superconductors (HTS). These factors become especially important when thin films are
Autor:
Marshall Onellion, Norman Tolk, Yuhang Ren, Yuri D. Glinka, S. Rast, Roman Sobolewski, X. H. Zeng, Weidong Si, A. T. Taylor, Ying Xu, Robert Joynt, A. Klimov, Gunter Lüpke, Michael L. Schneider, R. Manzke, Jure Demsar, A. Krapf, Ivan Bozovic, Xiaoxing Xi
Publikováno v:
Europhysics Letters (EPL). 60:460-466
Using a femtosecond pump-probe optical technique, we measured the time-resolv ed change in reflectivity of three single-layer cuprate samples, including Bi2Sr 2 − x La x CuO 6 + z, La2CuO 4 + y and La 2 − x Sr x CuO4 grown on SrTiO3. We analyze t