Phase coherence between external electrodes in double-barrier Nb/Al-AlOx-Al-AlOx-Nb tunnel junctions

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

doi:10.1016/S0921-4526(99)03044-6

Phase coherence between external electrodes in double-barrier Nb/Al-AlO_x-Al-AlO_x-Nb tunnel junctions

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

^*Corresponding author for this work

Physics and Astronomy

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

Abstract

We have experimentally investigated electron transport in double-barrier Nb/Al-AlO_x-Al-AlO_x-Nb devices. The devices with a "dirty" middle Al layer reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as manifestation of quantum Andreev bound states.

Original language	English (US)
Pages (from-to)	1834-1835
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART II
DOIs	https://doi.org/10.1016/S0921-4526(99)03044-6
State	Published - 2000

Funding

This research was supported by the Northwestern Materials Research Center under the NSF MRSEC program, DMR9309061.

Keywords

Andreev bound states
Josephson effect
Superconductivity
Tunneling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(99)03044-6

Cite this

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title = "Phase coherence between external electrodes in double-barrier Nb/Al-AlOx-Al-AlOx-Nb tunnel junctions",

abstract = "We have experimentally investigated electron transport in double-barrier Nb/Al-AlOx-Al-AlOx-Nb devices. The devices with a {"}dirty{"} middle Al layer reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as manifestation of quantum Andreev bound states.",

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

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

note = "Funding Information: This research was supported by the Northwestern Materials Research Center under the NSF MRSEC program, DMR9309061.",

year = "2000",

doi = "10.1016/S0921-4526(99)03044-6",

language = "English (US)",

volume = "284-288",

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publisher = "Elsevier B.V.",

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T1 - Phase coherence between external electrodes in double-barrier Nb/Al-AlOx-Al-AlOx-Nb tunnel junctions

AU - Nevirkovets, I. P.

AU - Ketterson, J. B.

AU - Shafranjuk, S. E.

N1 - Funding Information: This research was supported by the Northwestern Materials Research Center under the NSF MRSEC program, DMR9309061.

PY - 2000

Y1 - 2000

N2 - We have experimentally investigated electron transport in double-barrier Nb/Al-AlOx-Al-AlOx-Nb devices. The devices with a "dirty" middle Al layer reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as manifestation of quantum Andreev bound states.

AB - We have experimentally investigated electron transport in double-barrier Nb/Al-AlOx-Al-AlOx-Nb devices. The devices with a "dirty" middle Al layer reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as manifestation of quantum Andreev bound states.

KW - Andreev bound states

KW - Josephson effect

KW - Superconductivity

KW - Tunneling

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JF - Physica B: Condensed Matter

IS - PART II

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