Resonance effects due to the excitation of surface Josephson plasma waves in layered superconductors

作     者：V. A. Yampol’skii A. V. Kats M. L. Nesterov A. Yu. Nikitin T. M. Slipchenko Sergey Savel’ev Franco Nori 

作者机构：Advanced Science Institute The Institute of Physical and Chemical Research (RIKEN) Wako-shi Saitama 351-0198 Japan A.Ya. Usikov Institute for Radiophysics and Electronics Ukrainian Academy of Sciences 61085 Kharkov Ukraine Department of Physics Loughborough University Loughborough LE11 3TU United Kingdom Department of Physics Center for Theoretical Physics Applied Physics Program Center for the Study of Complex Systems University of Michigan Ann Arbor Michigan 48109-1040 USA 

出 版 物：《Physical Review B》 (物理学评论B辑：凝聚态物质与材料物理学)

年 卷 期：2009年第79卷第21期

页      面：214501-214501页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：National Science Foundation, NSF Directorate for Computer and Information Science and Engineering, CISE, (0130383) Engineering and Physical Sciences Research Council, EPSRC, (EP/D072581/1) 

主　　题：bismuth compounds calcium current density electromagnetic wave absorption electromagnetic wave diffraction high-temperature superconductors Josephson effect resonance solid-state plasma strontium compounds 

摘      要：We analytically examine the excitation of surface Josephson plasma waves (SJPWs) in layered superconductors by an incident electromagnetic wave. The mechanism of excitation is related to the diffraction of the incident wave due to a small periodic modulation in the ab plane of the maximum c-axis Josephson current density. We show that the absorption of the incident wave can be substantially increased, for certain incident angles, due to the resonance excitation of SJPWs. The absorption increase is accompanied by a decrease in the specular reflection. Moreover, we find the dependence of the resonance value of the incident angle on the parameters of the superconductor and the frequency of the incident wave, and the depth of the modulations guaranteeing the total absorption (and total suppression of the specular reflection). Numerical examples of the resonance effects are presented for Bi2212 superconductors.