Open AccessSpontaneous magnetization of two superconducting coupled π rings
Author(s) -
Ke Wang,
Ling Jian,
Xie Fei-Xiang,
Ping Ma,
Yang Tao,
Furen Wang,
Yuchao Dai
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1509
Subject(s) - magnetization , spontaneous magnetization , superconductivity , condensed matter physics , physics , energy (signal processing) , inverse , quantum mechanics , magnetic field , mathematics , geometry
An analytical formula for the free energy of two coupled π rings is presented.Using the formula, the free energy is calculated for equidirectional spontaneous magnetization and inverse spontaneous magnetization of the two coupled π rings. We found that the whole system has a lower free energy in the latter case.