Effect of a dc magnetic field on the anomalous dispersion of localized Josephson plasma modes in layered superconductors

被引：2
|
作者：
Rokhmanova, T. [1 ,2 ]
Apostolov, S. S. [1 ,2 ]
Kvitka, N. [2 ]
Yampol'skii, V. A. [1 ,2 ]
机构：
[1] NASU, A Ya Usikov Inst Radiophys & Elect, UA-61085 Kharkov, Ukraine
[2] Kharkov Natl Univ, UA-61077 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2018年 / 44卷 / 06期
关键词：
REFRACTION; INDEX; WAVES;
D O I：
10.1063/1.5037558
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study theoretically the propagation of Josephson plasma waves (JPWs) localized on a slab of layered superconductor in the presence of an external dc magnetic field. The slab is sandwiched between two dielectric half-spaces and the wave modes propagate across the layers. We derive analytic expressions for the dispersion relations of the localized JPWs and present the numerical simulation for the effect of the external dc magnetic field on the dispersion. The anomalous dispersion of localized JPWs is predicted for a wide range of frequencies, wave vectors, and dc fields. Also, we discuss the possibility of the internal reflection of the localized modes in the inhomogeneous dc magnetic field. This phenomenon can find application in the terahertz electronics for the control of the localized mode propagation. Published by AIP Publishing.
引用
收藏
页码：552 / 560
页数：9
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