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Magnetic properties of Mn‐doped Bi 2 Te 3 and Sb 2 Te 3
Author(s) -
Choi Jeongyong,
Choi Sungyoul,
Choi Jiyoun,
Park Yongsup,
Park HyunMin,
Lee HeeWoong,
Woo ByungChul,
Cho Sunglae
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304527
Subject(s) - electron microprobe , lattice constant , doping , magnetization , ferromagnetism , analytical chemistry (journal) , materials science , crystallography , manganese , crystal structure , atomic radius , bismuth , curie temperature , diffraction , chemistry , condensed matter physics , physics , magnetic field , metallurgy , optics , optoelectronics , organic chemistry , chromatography , quantum mechanics
We have fabricated Mn‐doped Bi 2 Te 3 and Sb 2 Te 3 single crystals by the vertical gradient solidification method. The compositions and crystal structures of Bi 2− x Mn x Te 3 and Sb 2− x Mn x Te 3 were determined using Electron Probe Micro‐Analyzer (EPMA) and powder X‐ray diffraction (XRD) patterns, respectively. Both crystal structures were rhombohedral with smaller lattice constants because of the smaller atomic radius of Mn than those of Bi and Sb. Based on the magnetization measurements, Mn‐doped Bi 2 Te 3 and Sb 2 Te 3 compounds have ferromagnetic ordering at T C = 10 and 17 K, respectively. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)