Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling

C. Bai; Y. L. Yang; X. D. Zhang

doi:10.1140/epjb/e2008-00321-8

Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling

C. Bai^*, Y. L. Yang, X. D. Zhang

^*Corresponding author for this work

Beijing Normal University

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

8 Citations (Scopus)

Abstract

Based on the extended Blonder-Tinkham-Klapwijk (BTK) approach, we have investigated the coherent quantum transport in two-dimensional electron gas/superconductor (2DEG/SC) double tunneling junctions in the presence of the Rashba spin-orbit coupling (RSOC). It is found that all the reflection coefficients in BTK theory as well as conductance spectra oscillate with the external voltage and energy. The oscillation feature of conductance can be tuned largely by the RSOC for low insulating barriers, while for high insulating barriers it is almost independent of the RSOC. These phenomena are essentially different from those found in ferromagnet/superconductor double tunneling junctions.

Original language	English
Pages (from-to)	79-84
Number of pages	6
Journal	European Physical Journal B
Volume	65
Issue number	1
DOIs	https://doi.org/10.1140/epjb/e2008-00321-8
Publication status	Published - Sept 2008
Externally published	Yes

Access to Document

10.1140/epjb/e2008-00321-8

Cite this

@article{5eb468b95beb434f8952f1e361a9011d,

title = "Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling",

abstract = "Based on the extended Blonder-Tinkham-Klapwijk (BTK) approach, we have investigated the coherent quantum transport in two-dimensional electron gas/superconductor (2DEG/SC) double tunneling junctions in the presence of the Rashba spin-orbit coupling (RSOC). It is found that all the reflection coefficients in BTK theory as well as conductance spectra oscillate with the external voltage and energy. The oscillation feature of conductance can be tuned largely by the RSOC for low insulating barriers, while for high insulating barriers it is almost independent of the RSOC. These phenomena are essentially different from those found in ferromagnet/superconductor double tunneling junctions.",

author = "C. Bai and Yang, {Y. L.} and Zhang, {X. D.}",

year = "2008",

month = sep,

doi = "10.1140/epjb/e2008-00321-8",

language = "English",

volume = "65",

pages = "79--84",

journal = "European Physical Journal B",

issn = "1434-6028",

publisher = "Springer New York",

number = "1",

}

TY - JOUR

T1 - Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling

AU - Bai, C.

AU - Yang, Y. L.

AU - Zhang, X. D.

PY - 2008/9

Y1 - 2008/9

N2 - Based on the extended Blonder-Tinkham-Klapwijk (BTK) approach, we have investigated the coherent quantum transport in two-dimensional electron gas/superconductor (2DEG/SC) double tunneling junctions in the presence of the Rashba spin-orbit coupling (RSOC). It is found that all the reflection coefficients in BTK theory as well as conductance spectra oscillate with the external voltage and energy. The oscillation feature of conductance can be tuned largely by the RSOC for low insulating barriers, while for high insulating barriers it is almost independent of the RSOC. These phenomena are essentially different from those found in ferromagnet/superconductor double tunneling junctions.

AB - Based on the extended Blonder-Tinkham-Klapwijk (BTK) approach, we have investigated the coherent quantum transport in two-dimensional electron gas/superconductor (2DEG/SC) double tunneling junctions in the presence of the Rashba spin-orbit coupling (RSOC). It is found that all the reflection coefficients in BTK theory as well as conductance spectra oscillate with the external voltage and energy. The oscillation feature of conductance can be tuned largely by the RSOC for low insulating barriers, while for high insulating barriers it is almost independent of the RSOC. These phenomena are essentially different from those found in ferromagnet/superconductor double tunneling junctions.

UR - http://www.scopus.com/inward/record.url?scp=52949138691&partnerID=8YFLogxK

U2 - 10.1140/epjb/e2008-00321-8

DO - 10.1140/epjb/e2008-00321-8

M3 - Article

AN - SCOPUS:52949138691

SN - 1434-6028

VL - 65

SP - 79

EP - 84

JO - European Physical Journal B

JF - European Physical Journal B

IS - 1

ER -

Coherent quantum transport in two-dimensional electron gas/superconductor double junctions with Rashba spin-orbit coupling

Abstract

Access to Document

Other files and links

Fingerprint

Cite this