Spontaneous magnetization of two superconducting coupled π rings

被引:3
|
作者
Wang, K [1 ]
Liang, J [1 ]
Xie, FX [1 ]
Ma, P [1 ]
Yang, T [1 ]
Wang, FR [1 ]
Dai, YD [1 ]
机构
[1] Peking Univ, Sch Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China
关键词
coupled pi rings; spontaneous magnetization; free energy;
D O I
10.7498/aps.52.1509
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
An analytical formula for the free energy of two coupled pi rings is presented. Using the formula, the free, energy is calculated for equidirectional spontaneous magnetization and inverse spontaneous magnetization of the two coupled pi rings. We found that the whole system has a lower free energy in the latter case.
引用
收藏
页码:1509 / 1514
页数:6
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