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Spin‐glass state induced low field magnetization‐step effect in a Hg 1− x Mn x Te single crystal
Author(s) -
Zhu Liangqing,
Shao Jun,
Zhu Liang,
Chen Xiren,
Lin Tie,
Zhang Yuanyuan,
Li Yanqiu,
Qi Zhen,
Bai Wei,
Tang Xiaodong,
Chu Junhao
Publication year - 2016
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.201600146
Subject(s) - condensed matter physics , magnetization , spin glass , antiferromagnetism , single crystal , spins , magnetic field , materials science , thermoremanent magnetization , raman scattering , scattering , crystal (programming language) , raman spectroscopy , chemistry , crystallography , physics , remanence , optics , programming language , quantum mechanics , computer science
Abstract The low field magnetization‐step effect was observed in the spin‐glass (SG) regime of p‐type Hg 0.8 Mn 0.2 Te single crystal when the temperature was less than about 3 K. The main features of this effect were (i) the magnetic susceptibility suddenly reduced to almost zero as the magnetic field decreased below a critical value; (ii) the critical magnetic field correlated reversely to temperature. In addition, X‐ray diffraction, Raman scattering, and temperature‐dependent Hall measurements manifested this effect was the intrinsic nature of the Hg 1 − xMn x Te single crystal. Qualitative theoretical analysis suggests that the possible mechanism of low field magnetization‐step effect is the combined effect of SG transition and (long‐range) antiferromagnetic interactions among Mn 2 +ions in randomly frustrated spins system.