Characterization of Mn-doped Sb1.5bi0.5Te3 single crystals

被引:5
|
作者
Plechácek, T
Svanda, P
Drasar, C
Benes, L
Krejcova, A
Losták, P
机构
[1] Univ Pardubice, Fac Chem Technol, Pardubice 53210, Czech Republic
[2] Acad Sci Czech Republ, Joint Lab Solid State Chem, Pardubice 53219, Czech Republic
[3] Univ Pardubice, Joint Lab Solid State Chem, Pardubice 53219, Czech Republic
来源
关键词
crystals of tetradymite structure; reflectance in the plasma resonance frequency region; Hall and Seebeck coefficients; electrical conductivity; lattice defects;
D O I
10.1080/10420150108211850
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
Single crystals of (Sb0.75Bi0.25)(2-x)MnxTe3 and Sb1.5Bi0.5MnxTe3 (x = 0.0 - 0.05) were characterized by X-ray diffraction, measurements of reflectance in the plasma resonance frequency region, Hall coefficient, electrical conductivity, and Seebeck coefficient. It was found that Mn atoms in the crystal structure of Sb1.5Bi0.5Te3 behave like acceptors; the increase in the hole concentration is explained by the formation of substitutional defects of Mn'(Sb) and Mn'(Bi) in the crystal lattice of the studied crystals.
引用
收藏
页码:343 / 358
页数:16
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