Macroscopic quantum effects in capacitively- and inductively-coupled intrinsic Josephson junctions

被引：1

作者：

Koyama, T. ^{[1
,3
]}

Machida, M. ^{[2
,3
]}

机构：

[1] Tohoku Univ, IMR, Sendai, Miyagi 9808577, Japan

[2] Japan Atom Energy Agcy, CCSE, Tokyo 1100015, Japan

[3] JST CREST, Kawaguchi, Saitama 3320012, Japan

来源：

25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY | 2009年 / 150卷

关键词：

T-C SUPERCONDUCTORS; I-V CHARACTERISTICS; LAYERED SUPERCONDUCTORS;

D O I：

10.1088/1742-6596/150/5/052127

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A theory for macroscopic quantum tunneling (MQT) in intrinsic Josephson junction stacks is formulated. Both capacitive and inductive couplings between junctions are taken into account. We calculate the escape rate in the switching to the first resistive branch in the quantum regime. It is shown that the enhancement of the escape rate is caused mainly by the capacitive coupling between junctions in IJJ's with small in-plane area of similar to 1 mu m(2).

引用

页数：4

共 13 条

[1]

BAUCH T, 2003, PHYS REV LETT, V94, P7003

[2] TIME-DEPENDENT EQUATIONS FOR PHASE DIFFERENCES AND A COLLECTIVE MODE IN JOSEPHSON-COUPLED LAYERED SUPERCONDUCTORS [J].

BULAEVSKII, LN ;

ZAMORA, M ;

BAERISWYL, D ;

BECK, H ;

CLEM, JR .

PHYSICAL REVIEW B, 1994, 50 (17) :12831-12834

[3] Macroscopic quantum tunneling in globally coupled series arrays of Josephson junctions [J].

Fistul, M. V. .

PHYSICAL REVIEW B, 2007, 75 (01)

[4] Macroscopic quantum tunneling in a d-wave High-TC Bi2Sr2CaCu2O8+δ superconductor -: art. no. 107005 [J].

Inomata, K ;

Sato, S ;

Nakajima, K ;

Tanaka, A ;

Takano, Y ;

Wang, HB ;

Nagao, M ;

Hatano, H ;

Kawabata, S .

PHYSICAL REVIEW LETTERS, 2005, 95 (10)

[5] Enhanced macroscopic quantum tunneling in Bi2Sr2CaCu2O8+δ intrinsic Josephson-junction stacks [J].

Jin, XY ;

Lisenfeld, J ;

Koval, Y ;

Lukashenko, A ;

Ustinov, AV ;

Müller, P .

PHYSICAL REVIEW LETTERS, 2006, 96 (17)

[6] Macroscopic quantum tunneling and quasiparticle dissipation in d-wave superconductor Josephson junctions -: art. no. 132505 [J].

Kawabata, S ;

Kashiwaya, S ;

Asano, Y ;

Tanaka, Y .

PHYSICAL REVIEW B, 2004, 70 (13) :132505-1

[7] I-V characteristics of Josephson-coupled layered superconductors with longitudinal plasma excitations [J].

Koyama, T ;

Tachiki, M .

PHYSICAL REVIEW B, 1996, 54 (22) :16183-16191

[8] Dynamical breaking of charge neutrality in intrinsic Josephson junctions:: Common origin for microwave resonant absorptions and multiple-branch structures in the I-V characteristics [J].

Machida, M ;

Koyama, T ;

Tachiki, M .

PHYSICAL REVIEW LETTERS, 1999, 83 (22) :4618-4621

[9] Localized rotating-modes in capacitively coupled intrinsic Josephson junctions: Systematic study of branching structure and collective dynamical instability [J].

Machida, M ;

Koyama, T .

PHYSICAL REVIEW B, 2004, 70 (02) :024523-1

[10] Collective dynamics of macroscopic quantum tunnelling in layered high-Tc superconductors [J].

Machida, Masahiko ;

Koyama, Tomio .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2007, 20 (02) :S23-S27

← 1 2 →