Transport through a 2DEG channel with superconducting boundaries

J. Nitta; B. J. Van Wees; J. P. Heida; T. M. Klapwijk; A. Dimoulas; W. Van De Graaf; G. Borghs

doi:10.1016/0039-6028(96)00412-8

Transport through a 2DEG channel with superconducting boundaries

J. Nitta, B. J. Van Wees, J. P. Heida, T. M. Klapwijk, A. Dimoulas, W. Van De Graaf, G. Borghs

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

Abstract

We have investigated transport through a channel with superconducting boundaries where electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance R_t through the channel as well as the resistance R_i between the injector and the channel have been measured as a function of the phase difference φ between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in R_t due to the transmitted current modulation is less than 0.1% in this experiment.

Original language	English
Pages (from-to)	320-323
Number of pages	4
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00412-8
Publication status	Published - 1996 Jul 20
Externally published	Yes

Keywords

Electrical transport
Electrical transport measurements
Indium arsenide
Niobium
Quantum effects
Quantum wells
Semiconductor-superconductor interfaces
Superconductivity

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "Transport through a 2DEG channel with superconducting boundaries",

abstract = "We have investigated transport through a channel with superconducting boundaries where electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance Rt through the channel as well as the resistance Ri between the injector and the channel have been measured as a function of the phase difference φ between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in Rt due to the transmitted current modulation is less than 0.1% in this experiment.",

keywords = "Electrical transport, Electrical transport measurements, Indium arsenide, Niobium, Quantum effects, Quantum wells, Semiconductor-superconductor interfaces, Superconductivity",

author = "J. Nitta and {Van Wees}, {B. J.} and Heida, {J. P.} and Klapwijk, {T. M.} and A. Dimoulas and {Van De Graaf}, W. and G. Borghs",

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month = jul,

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doi = "10.1016/0039-6028(96)00412-8",

language = "English",

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T1 - Transport through a 2DEG channel with superconducting boundaries

AU - Nitta, J.

AU - Van Wees, B. J.

AU - Heida, J. P.

AU - Klapwijk, T. M.

AU - Dimoulas, A.

AU - Van De Graaf, W.

AU - Borghs, G.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - We have investigated transport through a channel with superconducting boundaries where electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance Rt through the channel as well as the resistance Ri between the injector and the channel have been measured as a function of the phase difference φ between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in Rt due to the transmitted current modulation is less than 0.1% in this experiment.

AB - We have investigated transport through a channel with superconducting boundaries where electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance Rt through the channel as well as the resistance Ri between the injector and the channel have been measured as a function of the phase difference φ between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in Rt due to the transmitted current modulation is less than 0.1% in this experiment.

KW - Electrical transport

KW - Electrical transport measurements

KW - Indium arsenide

KW - Niobium

KW - Quantum effects

KW - Quantum wells

KW - Semiconductor-superconductor interfaces

KW - Superconductivity

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DO - 10.1016/0039-6028(96)00412-8

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EP - 323

JO - Surface Science

JF - Surface Science

SN - 0039-6028

ER -

Transport through a 2DEG channel with superconducting boundaries

Abstract

Keywords

ASJC Scopus subject areas

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