Polaronic quasiparticle injection in organic copper (II) phthalocyanine/Bi2Sr2CaCu2O8+δ</su b> tunnel junctions

Kim, S; E, J; Lee, K; Ishibashi, T; Sato, K; Friedman, B

doi:10.1063/1.1467703

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Polaronic quasiparticle injection in organic copper (II) phthalocyanine/Bi2Sr2CaCu2O8+δ</su b> tunnel junctions

Kim, S;
E, J;
Lee, K;
Ishibashi, T;
Sato, K;
외 1명

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초록

We report the current transport properties of an organic conductor/superconductor tunnel junction as a high-T-c superconducting three terminal device. The organic copper (II) phthalocyanine (Cu-Pc) layer was used for a polaronic quasiparticle (QP) injector. The junction was investigated in the dark and under ultraviolet radiation. The injection of polaronic QP from the Cu-Pc interlayer into a superconductor Bi2Sr2CaCu2O8+delta (BSCCO) thin film generated a substantially larger nonequilibrium effect as compared to the normal QP injection current. The tunneling spectroscopy of a Cu-Pc/BSCCO junction exhibited a zero bias conductance peak, which may be interpreted as Andreev reflection at a Cu-Pc/d-wave superconductor junction. (C) 2002 American Institute of Physics.

키워드

BIAS CONDUCTANCE PEAKS; T-C SUPERCONDUCTORS; CHARGE-SEPARATION; PAIR BREAKING; THIN-FILMS; TRANSPORT; TRANSISTORS; FERROMAGNET; SYMMETRY; STATES

제목: Polaronic quasiparticle injection in organic copper (II) phthalocyanine/Bi2Sr2CaCu2O8+δ</su b> tunnel junctions

저자: Kim, S; E, J; Lee, K; Ishibashi, T; Sato, K; Friedman, B

DOI: 10.1063/1.1467703

발행일: 2002-04-08

유형: Article

저널명: Applied Physics Letters

권: 80

호: 14

페이지: 2526 ~ 2528