Macroscopic quantum effects in intrinsic Josephson junction stacks

T. Koyama, M. Machida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A macroscopic quantum theory for the capacitively-coupled intrinsic Josephson junctions (IJJ's) is constructed. We clarify the multi-junction effect for the macroscopic quantum tunneling (MQT) to the first resistive branch. It is shown that the escape rate is greatly enhanced by the capacitive coupling between junctions. We also discuss the origin of the N2-enhancement in the escape rate observed in the uniformly switching in Bi-2212 IJJ's.

Original languageEnglish
Pages (from-to)1913-1915
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume468
Issue number15-20
DOIs
Publication statusPublished - 2008 Sep 15

Keywords

  • Capacitively-coupled intrinsic Josephson junction model
  • Intrinsic Josephson junctions
  • MQT

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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