Elementary excitations in reentrant magnets and concentrated spin glasses

We present a systematic study of the temperature dependence of the field induced magnetization, (M), derived from magnetic resonance data, in reentrant magnets and concentrated spin glasses. In the former, M reduces as T at low T and as T 3 2 at high T. In the latter, M is roughly constant at low T...

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Published in:Solid state communications 1987-11, Vol.64 (7), p.1005-1009
Main Authors: Liao, S.B., Bhagat, S.M.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic properties and materials
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Specific materials
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description We present a systematic study of the temperature dependence of the field induced magnetization, (M), derived from magnetic resonance data, in reentrant magnets and concentrated spin glasses. In the former, M reduces as T at low T and as T 3 2 at high T. In the latter, M is roughly constant at low T and drops linearly with T at high T. An attempt is made to understand the observations by introducing an energy gap in the magnetic excitation spectrum along with a non-zero density of states at the gap energy.
doi_str_mv 10.1016/0038-1098(87)91019-2
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnetic properties and materials
Materials science
Metals, semimetals and alloys
Other topics in magnetic properties and materials
Physics
Specific materials
title Elementary excitations in reentrant magnets and concentrated spin glasses
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