Fano-type resonances induced by a boson mode in Andreev conductance

doi:10.1088/1674-1056/24/1/017304

中国物理B ›› 2015, Vol. 24 ›› Issue (1): 17304-017304.doi: 10.1088/1674-1056/24/1/017304

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Fano-type resonances induced by a boson mode in Andreev conductance

J. Barański, T. Domański

Institute of Physics, M. Curie-Skłodowska University, 20-031 Lublin, Poland

收稿日期:2014-07-29 修回日期:2014-09-04 出版日期:2015-01-05 发布日期:2015-01-05
基金资助:
Project supported by the National Center of Science (Grant No. NN202 263138).

Fano-type resonances induced by a boson mode in Andreev conductance

J. Barański, T. Domański

Institute of Physics, M. Curie-Sk?odowska University, 20-031 Lublin, Poland

Received:2014-07-29 Revised:2014-09-04 Online:2015-01-05 Published:2015-01-05
Contact: T. Domański E-mail:doman@kft.umcs.lublin.pl
Supported by:
Project supported by the National Center of Science (Grant No. NN202 263138).

摘要/Abstract

摘要：

We study spectroscopic signatures of a monochromatic boson mode interacting with a T-shape double quantum dot coupled between the metallic and superconducting leads. Focusing on a weak interdot coupling, we find that the proximity effect together with the bosonic mode are responsible for the series of Fano-type resonances appearing simultaneously at negative and positive energies. We investigate these interferometric features and discuss their influence on the subgap Andreev conductance taking into account the correlation effects driven by the Coulomb repulsion.

关键词: Fano interference, Andreev scattering, polaronic features

Abstract:

Key words: Fano interference, Andreev scattering, polaronic features

中图分类号: (Quantum dots)

73.63.Kv

73.23.Hk (Coulomb blockade; single-electron tunneling) 74.45.+c (Proximity effects; Andreev reflection; SN and SNS junctions) 74.50.+r (Tunneling phenomena; Josephson effects)

J. Barański, T. Domański. Fano-type resonances induced by a boson mode in Andreev conductance[J]. 中国物理B, 2015, 24(1): 17304-017304.

J. Barański, T. Domański. Fano-type resonances induced by a boson mode in Andreev conductance[J]. Chin. Phys. B, 2015, 24(1): 17304-017304.

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Fano-type resonances induced by a boson mode in Andreev conductance

Fano-type resonances induced by a boson mode in Andreev conductance

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