Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2001,（12）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 1635-1637
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

For the non-interacting electrons confined by a mesoscopic double-ring with a magnetic flux threading its centre, we consider the problem of persistent current at zero andfinite temperatures. Furthermore, the tight-binding modelis applied to give the expression of persistent current in this system. It is shown that, in this double-ring system, the phenomenon of entire period halving will occur.