Wiedemann–Franz law in proximity bilayers

Takehito Yokoyama, Yukio Tanaka, Alexandre Avraamovitch Golubov, Jun-ichiro Inoue, Yasuhiro Asano

Research output: Contribution to journalArticleAcademic

Abstract

Wiedemann-Franz law in the diffusive normal metal/insulator/d-wave superconductor junctions is studied for various transparency of the insulating barrier and various misorientation angles between the normal to the interface and the crystal axis of d-wave superconductors. Contrary to the conductance, the thermal conductance of the junctions does not depend seriously on the misorientation angle α of the junctions. Reflecting the formation of the midgap Andreev resonant states at the junction interface, the temperature dependence of the Lorentz ratio depends drastically on α for low transparent junctions.
Original languageEnglish
Pages (from-to)1398-1400
JournalJournal of physics and chemistry of solids
Volume66
Issue number8-9
DOIs
Publication statusPublished - 2005

Fingerprint

Superconducting materials
proximity
Transparency
misalignment
Metals
Crystals
Temperature
insulators
temperature dependence
metals
crystals
Hot Temperature

Keywords

  • IR-77633

Cite this

Yokoyama, Takehito ; Tanaka, Yukio ; Golubov, Alexandre Avraamovitch ; Inoue, Jun-ichiro ; Asano, Yasuhiro. / Wiedemann–Franz law in proximity bilayers. In: Journal of physics and chemistry of solids. 2005 ; Vol. 66, No. 8-9. pp. 1398-1400.
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Wiedemann–Franz law in proximity bilayers. / Yokoyama, Takehito; Tanaka, Yukio; Golubov, Alexandre Avraamovitch; Inoue, Jun-ichiro; Asano, Yasuhiro.

In: Journal of physics and chemistry of solids, Vol. 66, No. 8-9, 2005, p. 1398-1400.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Wiedemann–Franz law in proximity bilayers

AU - Yokoyama, Takehito

AU - Tanaka, Yukio

AU - Golubov, Alexandre Avraamovitch

AU - Inoue, Jun-ichiro

AU - Asano, Yasuhiro

PY - 2005

Y1 - 2005

N2 - Wiedemann-Franz law in the diffusive normal metal/insulator/d-wave superconductor junctions is studied for various transparency of the insulating barrier and various misorientation angles between the normal to the interface and the crystal axis of d-wave superconductors. Contrary to the conductance, the thermal conductance of the junctions does not depend seriously on the misorientation angle α of the junctions. Reflecting the formation of the midgap Andreev resonant states at the junction interface, the temperature dependence of the Lorentz ratio depends drastically on α for low transparent junctions.

AB - Wiedemann-Franz law in the diffusive normal metal/insulator/d-wave superconductor junctions is studied for various transparency of the insulating barrier and various misorientation angles between the normal to the interface and the crystal axis of d-wave superconductors. Contrary to the conductance, the thermal conductance of the junctions does not depend seriously on the misorientation angle α of the junctions. Reflecting the formation of the midgap Andreev resonant states at the junction interface, the temperature dependence of the Lorentz ratio depends drastically on α for low transparent junctions.

KW - IR-77633

U2 - 10.1016/j.jpcs.2005.05.017

DO - 10.1016/j.jpcs.2005.05.017

M3 - Article

VL - 66

SP - 1398

EP - 1400

JO - Journal of physics and chemistry of solids

JF - Journal of physics and chemistry of solids

SN - 0022-3697

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