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Spin‐Glass Behavior in Semiconducting Single Crystalline ZnMn 2 As 2
Author(s) -
Laue I.,
Vanacken J.,
Nateprov A. N.,
Herlach F.,
von Ortenberg M.,
Arushanov E. K.
Publication year - 1994
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.2221850121
Subject(s) - condensed matter physics , spin glass , magnetization , ferromagnetism , materials science , relaxation (psychology) , squid , magnetic moment , spin (aerodynamics) , single crystal , phase (matter) , anisotropy , magnetic anisotropy , line (geometry) , nuclear magnetic resonance , magnetic field , physics , optics , thermodynamics , psychology , social psychology , ecology , geometry , mathematics , quantum mechanics , biology
The dc magnetization of single crystalline ZnMn 2 As 2 is studied using an rf‐SQUID. It is found that the crystals are anisotropic, show a ferromagnetic transition around T = 310 K, a helical magnetic phase below T = 110 K, and there is evidence of a strong spin‐glass behavior below T = 33 K. The spin‐glass phase is studied from zero‐field cooled (ZFC) and rémanent magnetization experiments. An irreversibility line (de Almeida‐Thouless line) is clearly observed for both principal orientations of the crystal and a comparison is made between the magnetic moment relaxation measured using the ZFC and the rémanent methods.