Andreev bound states in YBa2Cu3Oy/Au/Co tunnel junctions

Lee, K; Kim, S; Friedman, B; Cha, D; Iguchid, I

doi:10.1016/S0921-4534(00)01709-3

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Andreev bound states in YBa2Cu3Oy/Au/Co tunnel junctions

Lee, K;
Kim, S;
Friedman, B;
Cha, D;
Iguchid, I

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초록

We report the transport properties of YBa2Cu3Oy (YBCO)/Au/Co and YBCO/Au tunnel junctions. The conductance spectra between ferromagnet and high-T-c superconductor show a zero bias conductance peak (ZBCP), reflecting the charge transport in the [110] surface. For normal metal/YBCO tunnel junctions, a clear ZBCP directly related to the Andreev bound states was observed for the [110] surface. These results may be confirmed by spin tunneling at a ferromagnet/d-wave superconducting tunnel junction. (C) 2001 Elsevier Science B.V. All rights reserved.

키워드

Andreev reflection; spin tunneling; d-wave; zero bias conductance peak; ferromagnet; INJECTION; SUPERCONDUCTOR

제목: Andreev bound states in YBa2Cu3Oy/Au/Co tunnel junctions

저자: Lee, K; Kim, S; Friedman, B; Cha, D; Iguchid, I

DOI: 10.1016/S0921-4534(00)01709-3

발행일: 2001-04

유형: Article; Proceedings Paper

저널명: Physica C: Superconductivity and its Applications

권: 352

호: 1-4

페이지: 135 ~ 140