Magnetic transitions and scaling behavior in Gd-rich glasses

M. J. O'Shea, D. J. Sellmyer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The magnetic properties of amorphous alloys with composition GdxLa72-xGa18B10 have been investigated using ac-susceptibilty and dc-magnetization techniques in the temperature range 4.2300 K. This system shows double-transition behavior for x67 and paramagneticspin-glass transition behavior for x<67. Time-dependent magnetization effects are present in the spin-glass phase and these effects vanish in finite fields, in qualitative agreement with mean-field theory. The magnetic isotherms around both the paramagnetic-ferromagnetic and ferromagneticspin-glass transitions scale according to the scaling hypothesis, and these results are discussed in some detail. A magnetic phase diagram for this system is obtained from the transition temperatures determined from scaling.

Original languageEnglish (US)
Pages (from-to)7502-7511
Number of pages10
JournalPhysical Review B
Volume32
Issue number11
DOIs
StatePublished - 1985

ASJC Scopus subject areas

  • Condensed Matter Physics

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