Magnetic transitions and scaling behavior in Gd-rich glasses

M. J. O'Shea, David J Sellmyer

Research output: Contribution to journalArticle

12 Citations (Scopus)

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 - Jan 1 1985

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Glass transition
Magnetization
scaling
Glass
Mean field theory
Spin glass
glass
Amorphous alloys
Superconducting transition temperature
Phase diagrams
Isotherms
Magnetic properties
magnetization
spin glass
isotherms
Chemical analysis
transition temperature
phase diagrams
magnetic properties
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetic transitions and scaling behavior in Gd-rich glasses. / O'Shea, M. J.; Sellmyer, David J.

In: Physical Review B, Vol. 32, No. 11, 01.01.1985, p. 7502-7511.

Research output: Contribution to journalArticle

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