Josephson current through a diffusive half metal

Y. Asano; Y. Tanaka; Alexandre Avraamovitch Golubov

doi:10.1016/j.physc.2007.04.229

Josephson current through a diffusive half metal

Y. Asano, Y. Tanaka, Alexandre Avraamovitch Golubov

Faculty of Science and Technology

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Abstract

This paper discusses the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The spin-flip scattering at the junction interfaces opens a Josephson channel between the two spin-singlet superconductors. The odd-frequency equal-spin-triplet Cooper pairs carry the Josephson current. As a consequence, the local density of states in a half metal has a large peak at the Fermi energy. We propose an experimental method to detect odd-frequency pairs by using the scanning tunneling spectroscopy.

Original language	Undefined
Pages (from-to)	19-
Journal	Physica C
Volume	463-465
DOIs	https://doi.org/10.1016/j.physc.2007.04.229
Publication status	Published - 2007

Keywords

IR-75085
METIS-242860

Access to Document

10.1016/j.physc.2007.04.229

Cite this

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title = "Josephson current through a diffusive half metal",

abstract = "This paper discusses the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The spin-flip scattering at the junction interfaces opens a Josephson channel between the two spin-singlet superconductors. The odd-frequency equal-spin-triplet Cooper pairs carry the Josephson current. As a consequence, the local density of states in a half metal has a large peak at the Fermi energy. We propose an experimental method to detect odd-frequency pairs by using the scanning tunneling spectroscopy.",

keywords = "IR-75085, METIS-242860",

author = "Y. Asano and Y. Tanaka and Golubov, {Alexandre Avraamovitch}",

note = "Proceedings of the 19th International Symposium on Superconductivity (ISS 2006) ",

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doi = "10.1016/j.physc.2007.04.229",

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T1 - Josephson current through a diffusive half metal

AU - Asano, Y.

AU - Tanaka, Y.

AU - Golubov, Alexandre Avraamovitch

N1 - Proceedings of the 19th International Symposium on Superconductivity (ISS 2006)

PY - 2007

Y1 - 2007

N2 - This paper discusses the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The spin-flip scattering at the junction interfaces opens a Josephson channel between the two spin-singlet superconductors. The odd-frequency equal-spin-triplet Cooper pairs carry the Josephson current. As a consequence, the local density of states in a half metal has a large peak at the Fermi energy. We propose an experimental method to detect odd-frequency pairs by using the scanning tunneling spectroscopy.

AB - This paper discusses the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The spin-flip scattering at the junction interfaces opens a Josephson channel between the two spin-singlet superconductors. The odd-frequency equal-spin-triplet Cooper pairs carry the Josephson current. As a consequence, the local density of states in a half metal has a large peak at the Fermi energy. We propose an experimental method to detect odd-frequency pairs by using the scanning tunneling spectroscopy.

KW - IR-75085

KW - METIS-242860

U2 - 10.1016/j.physc.2007.04.229

DO - 10.1016/j.physc.2007.04.229

M3 - Article

SN - 0921-4534

VL - 463-465

SP - 19-

JO - Physica C

JF - Physica C

ER -