Spin-Polarons in the FM Kondo model

被引:0
|
作者
Daghofer, M [1 ]
Koller, W
Prüll, A
Evertz, HG
Von der Linden, W
机构
[1] Graz Univ Technol, Inst Theoret Phys, Graz, Austria
[2] Imperial Coll, London SW7 2AZ, England
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D O I
暂无
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
We show that holes doped into the FM Kondo model form independent FM spin-polarons with single holes inside, instead of showing phase separation. As a consequence there is a pseudogap in the DOS, which has been observed experimentally. Phase separation does appear at vanishing coupling J(AF) of the corespins, where we also observe stripe-like configurations. At large J(AF) and large doping, a flux phase appears. We present the phase diagram of this model in 2d.
引用
收藏
页码:276 / +
页数:3
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