Macroscopic quantum effects in intrinsic Josephson junction stacks

T. Koyama; M. Machida

doi:10.1016/j.physc.2008.05.161

Macroscopic quantum effects in intrinsic Josephson junction stacks

T. Koyama, M. Machida

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	1913-1915
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	468
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2008.05.161
Publication status	Published - 2008 Sept 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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10.1016/j.physc.2008.05.161

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AU - Machida, M.

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AB - 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.

KW - Capacitively-coupled intrinsic Josephson junction model

KW - Intrinsic Josephson junctions

KW - MQT

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 15-20

ER -

Macroscopic quantum effects in intrinsic Josephson junction stacks

Abstract

Keywords

ASJC Scopus subject areas

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