Magnetic transitions and scaling in anisotropic rare-earth glasses

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

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We report studies of the magnetic critical behavior as a function of anisotropy strength in rare-earth-rich glasses. Anisotropy is induced in Gd-Co by alloying with Tb. The system studied is Gd65-xTb xCo35 and the random magnetic anisotropy (RMA) strength may be increased by increasing x. The x=0 alloy of this series has been shown to exhibit standard critical behavior expected for a second-order phase transition. With increasing x we find deviations from this behavior due to the presence of RMA. We present detailed results for the alloy with composition x=50 at. % and show that for large enough magnetic fields the system continues to show standard ferromagnetic scaling but for low enough fields the system crosses over to a behavior describable by nonlinear scaling similar to that found in spin-glass systems.

Original languageEnglish (US)
Pages (from-to)3616-3618
Number of pages3
JournalJournal of Applied Physics
Issue number8
StatePublished - 1987

ASJC Scopus subject areas

  • General Physics and Astronomy


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