Possible manifestation of Andreev bound states in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb tunnel junctions

I. P. Nevirkovets; J. B. Ketterson; S. E. Shafranjuk; S. Lomatch

doi:10.1016/S0375-9601(00)00263-2

Possible manifestation of Andreev bound states in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb tunnel junctions

I. P. Nevirkovets^*, J. B. Ketterson, S. E. Shafranjuk, S. Lomatch

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We have experimentally investigated electron transport in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb devices. At low temperatures, the devices reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as a manifestation of Andreev bound states. A correlation between phase-coherent and nonequilibrium properties is suggested. (C) 2000 Elsevier Science B.V.

Original language	English (US)
Pages (from-to)	238-244
Number of pages	7
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	269
Issue number	4
DOIs	https://doi.org/10.1016/S0375-9601(00)00263-2
State	Published - May 8 2000

Keywords

Andreev bound states
Andreev reflection
Josephson effect
Superconductivity
Tunneling

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/S0375-9601(00)00263-2

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title = "Possible manifestation of Andreev bound states in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb tunnel junctions",

abstract = "We have experimentally investigated electron transport in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb devices. At low temperatures, the devices reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as a manifestation of Andreev bound states. A correlation between phase-coherent and nonequilibrium properties is suggested. (C) 2000 Elsevier Science B.V.",

keywords = "Andreev bound states, Andreev reflection, Josephson effect, Superconductivity, Tunneling",

author = "Nevirkovets, {I. P.} and Ketterson, {J. B.} and Shafranjuk, {S. E.} and S. Lomatch",

note = "Funding Information: This research was supported by the Northwestern Materials Research Center under the NSF MRSEC program, DMR9309061, and the Office of Naval Research under grant N00014-00-1-0025. Fruitful discussions with A.A. Golubov are acknowledged.",

year = "2000",

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doi = "10.1016/S0375-9601(00)00263-2",

language = "English (US)",

volume = "269",

pages = "238--244",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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TY - JOUR

T1 - Possible manifestation of Andreev bound states in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb tunnel junctions

AU - Nevirkovets, I. P.

AU - Ketterson, J. B.

AU - Shafranjuk, S. E.

AU - Lomatch, S.

N1 - Funding Information: This research was supported by the Northwestern Materials Research Center under the NSF MRSEC program, DMR9309061, and the Office of Naval Research under grant N00014-00-1-0025. Fruitful discussions with A.A. Golubov are acknowledged.

PY - 2000/5/8

Y1 - 2000/5/8

N2 - We have experimentally investigated electron transport in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb devices. At low temperatures, the devices reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as a manifestation of Andreev bound states. A correlation between phase-coherent and nonequilibrium properties is suggested. (C) 2000 Elsevier Science B.V.

AB - We have experimentally investigated electron transport in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb devices. At low temperatures, the devices reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as a manifestation of Andreev bound states. A correlation between phase-coherent and nonequilibrium properties is suggested. (C) 2000 Elsevier Science B.V.

KW - Andreev bound states

KW - Andreev reflection

KW - Josephson effect

KW - Superconductivity

KW - Tunneling

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U2 - 10.1016/S0375-9601(00)00263-2

DO - 10.1016/S0375-9601(00)00263-2

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VL - 269

SP - 238

EP - 244

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 4

ER -

Possible manifestation of Andreev bound states in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb tunnel junctions

Abstract

Keywords

ASJC Scopus subject areas

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