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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
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.