Quantum effects on capacitively coupled intrinsic Josephson junctions

被引：8
|
作者：
Machida, M. [1 ,2 ]
Kano, T. [1 ]
Yamada, S. [1 ,2 ]
Okumura, M. [1 ,2 ]
Imamura, T. [2 ,3 ]
Koyama, T. [2 ,4 ]
机构：
[1] Japan Atom Energy Agcy, CCSE, Tokyo 1100015, Japan
[2] CREST JST, Kawaguchi, Saitama 3320012, Japan
[3] Univ Electrocommun, Chofu, Tokyo 1828585, Japan
[4] Tohoku Univ, IMR, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 12期
关键词：
Superconductors; Superconductivity;
D O I：
10.1016/j.jpcs.2008.06.098
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We numerically study quantum effects in intrinsic Josephson junctions of layered high-T(c) superconductors in order to explain recent experimental observations on the switching rate enhancement in the low temperature quantum regime. We pay attention to the capacitive coupling between neighboring junctions and perform simulations for the Schrodinger equation derived from the Hamiltonian describing the capacitive coupling. The simulation results reveal that the phase dynamics show synchronous behaviors when entering the quantum regime. This is qualitatively consistent with the experimental result. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3221 / 3224
页数：4
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