Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System
WANG Hai-Jun1, YI Xue-Xi2,3, BA Xin-Wu1
1Department of Chemistry, Hebei University, Baoding 071002
2Institute of Theoretical Physics, Chinese Academy of
Sciences, Beijing 100080
3Institute of Theoretical Physics, Northeast Normal
University, Changchun 130024
Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System
WANG Hai-Jun1;YI Xue-Xi2,3;BA Xin-Wu1
1Department of Chemistry, Hebei University, Baoding 071002
2Institute of Theoretical Physics, Chinese Academy of
Sciences, Beijing 100080
3Institute of Theoretical Physics, Northeast Normal
University, Changchun 130024
Abstract： For the non-interacting electrons confined by a mesoscopic double-ring with a magnetic flux threading its center, we consider the problem of persistent current at zero and finite temperature. Furthermore, the tight-binding model is applied to give the expression of persistent current in this system. It is shown that in this double-ring system, the phenomena of entire period halving will occur.
WANG Hai-Jun;YI Xue-Xi;BA Xin-Wu. Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System[J]. 中国物理快报, 2001, 18(12): 1635-1637.
WANG Hai-Jun, YI Xue-Xi, BA Xin-Wu. Entire Period Halving of Persistent Current in a Mesoscopic Double-Ring System. Chin. Phys. Lett., 2001, 18(12): 1635-1637.
2001, Vol. 18 
