Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions

K. Sano; S. Kurihara

doi:10.1016/S0921-4534(00)01730-5

Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions

K. Sano^*, S. Kurihara

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

We calculate dc Josephson current through charge density wave (CDW) region connected to two superconductors (S₁, S₂) by tunnel junctions at zero temperature. We discover infrared anomaly of the dc Josephson current caused by phase mode in the long junction limit. In this limit, the Josephson current is proportional to the characteristic energy consisting of physical quantities in CDW region, while in the short junction limit, the Josephson current is similar to the Ambegaokar-Baratoff formula which is proportional to the energy gap of superconductor.

Original language	English
Pages (from-to)	223-227
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	352
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4534(00)01730-5
Publication status	Published - 2001 Apr

Keywords

Charge density wave
Collective mode
Electron-phase mode interaction
Infrared anomaly
Josephson junctions

ASJC Scopus subject areas

Condensed Matter Physics

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10.1016/S0921-4534(00)01730-5

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title = "Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions",

abstract = "We calculate dc Josephson current through charge density wave (CDW) region connected to two superconductors (S1, S2) by tunnel junctions at zero temperature. We discover infrared anomaly of the dc Josephson current caused by phase mode in the long junction limit. In this limit, the Josephson current is proportional to the characteristic energy consisting of physical quantities in CDW region, while in the short junction limit, the Josephson current is similar to the Ambegaokar-Baratoff formula which is proportional to the energy gap of superconductor.",

keywords = "Charge density wave, Collective mode, Electron-phase mode interaction, Infrared anomaly, Josephson junctions",

author = "K. Sano and S. Kurihara",

year = "2001",

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doi = "10.1016/S0921-4534(00)01730-5",

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T1 - Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions

AU - Sano, K.

AU - Kurihara, S.

PY - 2001/4

Y1 - 2001/4

N2 - We calculate dc Josephson current through charge density wave (CDW) region connected to two superconductors (S1, S2) by tunnel junctions at zero temperature. We discover infrared anomaly of the dc Josephson current caused by phase mode in the long junction limit. In this limit, the Josephson current is proportional to the characteristic energy consisting of physical quantities in CDW region, while in the short junction limit, the Josephson current is similar to the Ambegaokar-Baratoff formula which is proportional to the energy gap of superconductor.

AB - We calculate dc Josephson current through charge density wave (CDW) region connected to two superconductors (S1, S2) by tunnel junctions at zero temperature. We discover infrared anomaly of the dc Josephson current caused by phase mode in the long junction limit. In this limit, the Josephson current is proportional to the characteristic energy consisting of physical quantities in CDW region, while in the short junction limit, the Josephson current is similar to the Ambegaokar-Baratoff formula which is proportional to the energy gap of superconductor.

KW - Charge density wave

KW - Collective mode

KW - Electron-phase mode interaction

KW - Infrared anomaly

KW - Josephson junctions

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DO - 10.1016/S0921-4534(00)01730-5

M3 - Article

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SN - 0921-4534

VL - 352

SP - 223

EP - 227

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-4

ER -

Infrared anomaly of dc Josephson current in super/charge density wave/super Josephson junctions

Abstract

Keywords

ASJC Scopus subject areas

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