Magnetic and transport properties of Mn-doped Bi2Se3 and Sb2Se3

被引:35
作者
Choi, Jeongyong [1 ]
Lee, Hee-Woong [2 ]
Kim, Bong-Seo [2 ]
Park, Hyoyeol [3 ]
Choi, Sungyoul [1 ]
Hong, S. C. [1 ]
Cho, Sunglae [1 ,4 ]
机构
[1] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea
[2] Korea Electrotechnol Res Inst, Chang Won 641120, Kyongnam, South Korea
[3] Univ Ulsan, Dept Semicond Applicat, Ulsan 680749, South Korea
[4] Korea Inst Sci & Technol, Nanodevice Res Ctr, Seoul 136791, South Korea
关键词
DMS; Spin glass; Thermopower;
D O I
10.1016/j.jmmm.2006.02.041
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report on the single crystal growth and thermoelectric and magnetic properties of Mn-doped Bi2Se3 and Sb2Se3 single crystals prepared by the temperature gradient solidification method. The composition and crystal structure were determined using electron probe microanalysis and theta-2 theta powder X-ray diffraction studies, respectively. The lattice constants of several percent Mn-doped Bi2Se3 and Sb2Se3 were slightly smaller than those of the undoped sample due to the smaller Mn atomic radius (1.40 angstrom) than those of Bi (1.60 angstrom) and Sb (1.45 angstrom). Mn-doped Bi2Se3 and Sb2Se3 showed spin-glass and paramagnetic properties, respectively. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:E164 / E166
页数:3
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