Magnetic and transport percolation in diluted magnetic semiconductors

被引：99
|
作者：
Kaminski, A [1 ]
Das Sarma, S [1 ]
机构：
[1] Univ Maryland, Dept Phys, Condensed Matter Theory Ctr, College Pk, MD 20742 USA
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 23期
关键词：
D O I：
10.1103/PhysRevB.68.235210
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ferromagnetic transition in a diluted magnetic semiconductor with localized charge carriers is inevitably a percolation transition. In this work we theoretically study the correlation between this magnetic percolation and transport properties of the sample, including the possibility of a simultaneous transport percolation. We find nontrivial signatures of the percolating magnetic clusters in the transport properties of the system, including interesting nonmonotonic temperature dependence of the system resistivity.
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页数：6
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