PERSISTENT CURRENTS IN ONE-DIMENSIONAL DISORDERED RINGS OF INTERACTING ELECTRONS

被引:179
作者
BOUZERAR, G [1 ]
POILBLANC, D [1 ]
MONTAMBAUX, G [1 ]
机构
[1] UNIV PARIS 11,PHYS SOLIDE LAB,F-91405 ORSAY,FRANCE
来源
PHYSICAL REVIEW B | 1994年 / 49卷 / 12期
关键词
D O I
10.1103/PhysRevB.49.8258
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We calculate the persistent current of one-dimensional rings of spinless fermions with short-range interactions on a lattice with up to 20 sites, and in the presence of disorder, for various band fillings. We find that both disorder and interactions always decrease the persistent current by localizing the electrons. Away from half-filling, the interaction has a much stronger influence in the presence of disorder than in the pure case.
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收藏
页码:8258 / 8262
页数:5
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