Theory of macroscopic quantum tunnelling and dissipation in high-Tc Josephson junctions

S. Kawabata; Shiro Kawabata; Satoshi Kashiwaya; Yasuhiro Asano; Yukio Tanaka; Takeo Kato; T. Kato; Alexandre Avraamovitch Golubov

doi:10.1088/0953-2048/20/2/S02

Theory of macroscopic quantum tunnelling and dissipation in high-Tc Josephson junctions

S. Kawabata, Shiro Kawabata, Satoshi Kashiwaya, Yasuhiro Asano, Yukio Tanaka, Takeo Kato, T. Kato, Alexandre Avraamovitch Golubov

Faculty of Science and Technology

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

13 Citations (Scopus)

Abstract

We have investigated macroscopic quantum tunnelling (MQT) in in-plane high-Tc superconductor Josephson junctions and the influence of the nodal-quasiparticle and zero energy bound states (ZES) on MQT. We have shown that the presence of ZES at the interface between the insulator and the superconductor leads to strong Ohmic quasiparticle dissipation. Therefore, the MQT rate is noticeably suppressed in comparison with c-axis junctions in which ZES are completely absent.

Original language	Undefined
Pages (from-to)	S6-
Journal	Superconductor science and technology
Volume	20
Issue number	2
DOIs	https://doi.org/10.1088/0953-2048/20/2/S02
Publication status	Published - 2007

Keywords

METIS-243143
IR-74949

Access to Document

10.1088/0953-2048/20/2/S02

Cite this

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title = "Theory of macroscopic quantum tunnelling and dissipation in high-Tc Josephson junctions",

abstract = "We have investigated macroscopic quantum tunnelling (MQT) in in-plane high-Tc superconductor Josephson junctions and the influence of the nodal-quasiparticle and zero energy bound states (ZES) on MQT. We have shown that the presence of ZES at the interface between the insulator and the superconductor leads to strong Ohmic quasiparticle dissipation. Therefore, the MQT rate is noticeably suppressed in comparison with c-axis junctions in which ZES are completely absent.",

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language = "Undefined",

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Theory of macroscopic quantum tunnelling and dissipation in high-Tc Josephson junctions. / Kawabata, S.; Kawabata, Shiro; Kashiwaya, Satoshi; Asano, Yasuhiro; Tanaka, Yukio; Kato, Takeo; Kato, T.; Golubov, Alexandre Avraamovitch.

In: Superconductor science and technology, Vol. 20, No. 2, 2007, p. S6-.

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

TY - JOUR

T1 - Theory of macroscopic quantum tunnelling and dissipation in high-Tc Josephson junctions

AU - Kawabata, S.

AU - Kawabata, Shiro

AU - Kashiwaya, Satoshi

AU - Asano, Yasuhiro

AU - Tanaka, Yukio

AU - Kato, Takeo

AU - Kato, T.

AU - Golubov, Alexandre Avraamovitch

PY - 2007

Y1 - 2007

N2 - We have investigated macroscopic quantum tunnelling (MQT) in in-plane high-Tc superconductor Josephson junctions and the influence of the nodal-quasiparticle and zero energy bound states (ZES) on MQT. We have shown that the presence of ZES at the interface between the insulator and the superconductor leads to strong Ohmic quasiparticle dissipation. Therefore, the MQT rate is noticeably suppressed in comparison with c-axis junctions in which ZES are completely absent.

AB - We have investigated macroscopic quantum tunnelling (MQT) in in-plane high-Tc superconductor Josephson junctions and the influence of the nodal-quasiparticle and zero energy bound states (ZES) on MQT. We have shown that the presence of ZES at the interface between the insulator and the superconductor leads to strong Ohmic quasiparticle dissipation. Therefore, the MQT rate is noticeably suppressed in comparison with c-axis junctions in which ZES are completely absent.

KW - METIS-243143

KW - IR-74949

U2 - 10.1088/0953-2048/20/2/S02

DO - 10.1088/0953-2048/20/2/S02

M3 - Article

VL - 20

SP - S6-

JO - Superconductor science and technology

JF - Superconductor science and technology

SN - 0953-2048

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