Crossover from random field to spin-glass behavior in Fe x Zn1− x F2

It is well known that the diluted antiferromagnet FexZn1−xF2 under an external field is a prototype random field Ising model system (RFIM) when the concentration x is larger than ≂0.4. Here we show that as x decreases there is a crossover to spin-glass (SG) behavior. For x=0.25 the dc magnetization...

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Veröffentlicht in:	Journal of applied physics 1990-05, Vol.67 (9), p.5243-5245
Hauptverfasser:	Montenegro, F. C., Leitão, U. A., Coutinho-Filho, M. D., Rezende, S. M.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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