Observation of commensurability oscillations of thermopower in an antidot lattice

被引：6
|
作者：
Pogosov, AG [1 ]
Budantsev, MV [1 ]
Lavrov, RA [1 ]
Plotnikov, AE [1 ]
Bakarov, AK [1 ]
Toropov, AI [1 ]
机构：
[1] Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia
来源：
JETP LETTERS | 2005年 / 81卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.1984030
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Commensurability oscillations of thermopower in a square antidot lattice are observed. The oscillations are attributed to the geometrical resonances of the classical electron motion in a magnetic field and are much more pronounced than the corresponding magnetoresistance oscillations. The off-diagonal component of the thermopower tensor (the Nernst-Ettingshausen effect) changes sign at resonances. Additional measurements of magnetoresistance verify the correctness of the method used for thermopower measurements and provide information on the temperature distribution in the sample. (C) 2005 Pleiades Publishing, Inc.
引用
收藏
页码：462 / 466
页数：5
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