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Title: Josephson junction with two superconducting current components

Abstract

The properties of a Josephson junction with the 2π- and 4π-periodic superconducting current component have been analyzed. In the range of low voltages, such a junction exhibits the 4π periodicity of the phase difference for the Majorana current amplitude much smaller than the Josephson current, which makes it possible to observe Josephson current oscillations with a fractional period for small dissipation β < 1 in the hysteresis region. The effect the 4π-periodic Majorana current component is also manifested in a change in the sequence of steps in the ladder structure emerging on the current–voltage (I–V) characteristic of the junction. We have determined the interval of external electromagnetic radiation amplitudes, in which the manifestation of the fractional Josephson effect on the I–V characteristic is most significant.

Authors:
 [1];  [2];  [3];  [1]
  1. Joint Institute for Nuclear Research, Bogoliubov Laboratory for Theoretical Physics (Russian Federation)
  2. University of Cairo (Egypt)
  3. Moscow State University, Baku Branch (Azerbaijan)
Publication Date:
OSTI Identifier:
22756359
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 125; Journal Issue: 2; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONNECTORS; ELECTRIC CONTACTS; ELECTRIC POTENTIAL; ELECTROMAGNETIC RADIATION; JOSEPHSON EFFECT; JOSEPHSON JUNCTIONS; MAJORANA SPINORS; MATRICES; SEMICONDUCTOR JUNCTIONS

Citation Formats

Kulikov, K. V., E-mail: kulikov@theor.jinr.ru, Davud, R., Nakhmedov, E. P., and Shukrinov, Yu. M. Josephson junction with two superconducting current components. United States: N. p., 2017. Web. doi:10.1134/S1063776117070202.
Kulikov, K. V., E-mail: kulikov@theor.jinr.ru, Davud, R., Nakhmedov, E. P., & Shukrinov, Yu. M. Josephson junction with two superconducting current components. United States. doi:10.1134/S1063776117070202.
Kulikov, K. V., E-mail: kulikov@theor.jinr.ru, Davud, R., Nakhmedov, E. P., and Shukrinov, Yu. M. Tue . "Josephson junction with two superconducting current components". United States. doi:10.1134/S1063776117070202.
@article{osti_22756359,
title = {Josephson junction with two superconducting current components},
author = {Kulikov, K. V., E-mail: kulikov@theor.jinr.ru and Davud, R. and Nakhmedov, E. P. and Shukrinov, Yu. M.},
abstractNote = {The properties of a Josephson junction with the 2π- and 4π-periodic superconducting current component have been analyzed. In the range of low voltages, such a junction exhibits the 4π periodicity of the phase difference for the Majorana current amplitude much smaller than the Josephson current, which makes it possible to observe Josephson current oscillations with a fractional period for small dissipation β < 1 in the hysteresis region. The effect the 4π-periodic Majorana current component is also manifested in a change in the sequence of steps in the ladder structure emerging on the current–voltage (I–V) characteristic of the junction. We have determined the interval of external electromagnetic radiation amplitudes, in which the manifestation of the fractional Josephson effect on the I–V characteristic is most significant.},
doi = {10.1134/S1063776117070202},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 2,
volume = 125,
place = {United States},
year = {2017},
month = {8}
}