Spin glass in Fe-Ni invar alloys

T. Miyazaki, Y. Ando, M. Takahashi

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Initial ac susceptibility χ was examined in the temperature range from 4.2 K to Curie temperatures for polycrystalline Fe100-xNix (20≤x≤50) alloys. The reentrant spin glass is found in x=30-45 alloys. The dependence of the freezing temperature Tg on the intensity of driving magnetic field (ac: 0-0.26 Oe; dc: 0-10 Oe) and on the frequency (140-9200 Hz) was studied for the Fe65Ni3 5 alloy. A strong magnetic relaxation is observed below T g. These results are discussed based on the cluster model.

Original languageEnglish
Pages (from-to)3456-3458
Number of pages3
JournalJournal of Applied Physics
Issue number8
Publication statusPublished - 1985


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