Low Temperature Physics: 42, 916 (2016); https://doi.org/10.1063/1.4966244
Fizika Nizkikh Temperatur: Volume 42, Number 10 (October 2016), p. 1167-1176    ( to contents , go back )

Transformation of the polarization of the electromagnetic waves reflected from the layered superconductors in an external dc magnetic field

T.N. Rоkhmanova, S.S. Apostolov, Z.A. Maizelis, and V.A. Yampol’skii

O. Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12 Ac. Proskury, Kharkiv 61085, Ukraine

V.N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv 61022, Ukraine
E-mail: yam@ire.kharkov.ua
pos Анотація:

Received April 18, 2016

Abstract

We study theoretically the reflection of the transverse-electric and transverse-magnetic waves from the surface of semi-infinite layered superconductors in the presence of external dc magnetic field. The superconducting layers are supposed to be perpendicular to the boundary of the sample. Due to the strong anisotropy of the irradiated sample boundary, the transformation of the wave polarization occurs after its reflection. We show that, despite the relatively small penetration depth of the dc magnetic field, it affects qualitatively the field distribution of the electromagnetic wave and, therefore, the reflection and transmission coefficients. Thus, the external dc magnetic field can serve as an effective tool to control the transformation of the wave polarization. We obtain analytical expressions for the reflection and transmission coefficients and define also the values of parameters, when the most effective transformation of transverse-electric waves to transverse-magnetic, and vice versa, takes place.

PACS: 74.72.–h Cuprate superconductors;
PACS: 74.50.+r Tunneling phenomena; Josephson effects;
PACS: 74.78.Fk Multilayers, superlattices, heterostructures.

Key words: Josephson effect, layered superconductors, external dc magnetic field, transformation of the polarization of the electromagnetic waves.

Published online: August 29, 2016

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