Quantitative model for the IcRn product in d-wave Josephson junctions

Takehito Yokoyama, Yuki Sawa, Yukio Tanaka, Alexandre Avraamovitch Golubov, Atsutaka Maeda, Akira Fujimaki

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Abstract

We study theoretically the Josephson effect in d-wave superconductor/diffusive normal metal/insulator/diffusive normal metal/d-wave superconductor (D/DN/I/DN/D) junctions. This model aims to describe practical junctions in high-TC cuprate superconductors, in which the product of the critical Josephson current (IC) and the normal state resistance (R) (the so-called ICR product) is very small compared to the prediction of the standard theory for clean d-wave superconductor/insulator/d-wave superconductor (DID) junctions. We show that the ICR product in D/DN/I/DN/D junctions can be much smaller than that in DID junctions. The proposed theory describes the behavior of ICR products quantitatively in high-TC cuprate junctions.
Original languageUndefined
Pages (from-to)052508-
JournalPhysical review B: Condensed matter and materials physics
Volume76
Issue number5
DOIs
Publication statusPublished - 2007

Keywords

  • IR-59157
  • METIS-242706

Cite this

Yokoyama, Takehito ; Sawa, Yuki ; Tanaka, Yukio ; Golubov, Alexandre Avraamovitch ; Maeda, Atsutaka ; Fujimaki, Akira. / Quantitative model for the IcRn product in d-wave Josephson junctions. In: Physical review B: Condensed matter and materials physics. 2007 ; Vol. 76, No. 5. pp. 052508-.
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abstract = "We study theoretically the Josephson effect in d-wave superconductor/diffusive normal metal/insulator/diffusive normal metal/d-wave superconductor (D/DN/I/DN/D) junctions. This model aims to describe practical junctions in high-TC cuprate superconductors, in which the product of the critical Josephson current (IC) and the normal state resistance (R) (the so-called ICR product) is very small compared to the prediction of the standard theory for clean d-wave superconductor/insulator/d-wave superconductor (DID) junctions. We show that the ICR product in D/DN/I/DN/D junctions can be much smaller than that in DID junctions. The proposed theory describes the behavior of ICR products quantitatively in high-TC cuprate junctions.",
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Quantitative model for the IcRn product in d-wave Josephson junctions. / Yokoyama, Takehito; Sawa, Yuki; Tanaka, Yukio; Golubov, Alexandre Avraamovitch; Maeda, Atsutaka; Fujimaki, Akira.

In: Physical review B: Condensed matter and materials physics, Vol. 76, No. 5, 2007, p. 052508-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Quantitative model for the IcRn product in d-wave Josephson junctions

AU - Yokoyama, Takehito

AU - Sawa, Yuki

AU - Tanaka, Yukio

AU - Golubov, Alexandre Avraamovitch

AU - Maeda, Atsutaka

AU - Fujimaki, Akira

PY - 2007

Y1 - 2007

N2 - We study theoretically the Josephson effect in d-wave superconductor/diffusive normal metal/insulator/diffusive normal metal/d-wave superconductor (D/DN/I/DN/D) junctions. This model aims to describe practical junctions in high-TC cuprate superconductors, in which the product of the critical Josephson current (IC) and the normal state resistance (R) (the so-called ICR product) is very small compared to the prediction of the standard theory for clean d-wave superconductor/insulator/d-wave superconductor (DID) junctions. We show that the ICR product in D/DN/I/DN/D junctions can be much smaller than that in DID junctions. The proposed theory describes the behavior of ICR products quantitatively in high-TC cuprate junctions.

AB - We study theoretically the Josephson effect in d-wave superconductor/diffusive normal metal/insulator/diffusive normal metal/d-wave superconductor (D/DN/I/DN/D) junctions. This model aims to describe practical junctions in high-TC cuprate superconductors, in which the product of the critical Josephson current (IC) and the normal state resistance (R) (the so-called ICR product) is very small compared to the prediction of the standard theory for clean d-wave superconductor/insulator/d-wave superconductor (DID) junctions. We show that the ICR product in D/DN/I/DN/D junctions can be much smaller than that in DID junctions. The proposed theory describes the behavior of ICR products quantitatively in high-TC cuprate junctions.

KW - IR-59157

KW - METIS-242706

U2 - 10.1103/PhysRevB.76.052508

DO - 10.1103/PhysRevB.76.052508

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VL - 76

SP - 052508-

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

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