Calculation of the Josephson current in p-wave and s-wave superconducting hetero-junctions by Bogoliubov transformation

Author

Nakayama, Akiyoshi ; Okabe, Yoichi

Author_Institution

Dept. of Electr. Eng., Kanagawa Univ., Yokohama, Japan

Volume

27

Issue

2

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

1341

Lastpage

1344

Abstract

A superconducting heterojunction made of a p-wave superconductor and a normal s-wave superconductor is investigated. The Bogoliubov transformation for the p-wave superconductor was obtained by diagonalizing the superconducting Hamiltonian. The value of the Josephson current that flows in the heterojunctions of p-wave/s-wave superconductors was calculated with this Bogoliubov transformation and was shown to be zero in the first-order perturbation at 0 K and at finite temperature. The ground state of the Balian-Werthamer-state superconductor at 0 K was obtained in the second-quantization formalism

Keywords

Josephson effect; perturbation theory; superconducting junction devices; Balian-Werthamer-state superconductor; Bogoliubov transformation; Josephson current; first-order perturbation; normal s-wave superconductor; p-wave superconductor; second-quantization formalism; superconducting Hamiltonian; superconducting hetero-junctions; Electrodes; Electrons; Frequency domain analysis; High temperature superconductors; Joining processes; Josephson effect; Josephson junctions; Superconducting materials; Superconductivity; Tunneling;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.133432

Filename

133432