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

Shiro Kawabata, Satoshi Kashiwaya, Yasuhiro Asano, Yukio Tanaka, Takeo Kato, Alexandre A. Golubov

Research output: Contribution to journalArticleAcademicpeer-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 languageEnglish
Pages (from-to)S6-
JournalSuperconductor science and technology
Volume20
Issue number2
DOIs
Publication statusPublished - 2007

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