Effect of Spin Fluctuation on Magnetic Properties and Thermal Expansion of Y-Ni Amorphous Alloys

Asaya Fujita, Te Hsuan Chiang, Noriyuki Kataoka, Kazuaki Fukamichi

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The magnetic properties associated with the spin auctuation of YxNiioo-x (8:Xs32.5) amorphous alloys are investigated. The temperature dependence of Magnetization for YioNigo and Yi4Nis6 amorphous alloys exhibits a T4/3--M2 relation below the Curie temperature, as expected from the self consistent renormalization (SCR) theory. The reciprocal magnetic susceptibility shows a temperature dependence similar to that of the temperature-induced localized moment caused by the saturation of increasing amplitude of the local spin density,. The starting temperature of the saturation of 2L is estimated to be T“=230 K. The saturation of has also been conhrmed by measuring the thermal expansion.

Original languageEnglish
Pages (from-to)2579-2582
Number of pages4
Journaljournal of the physical society of japan
Volume62
Issue number8
DOIs
Publication statusPublished - 1993 Jan 1

Keywords

  • Y-Ni amorphous alloy
  • spin fluctuation
  • temperature-induced localized moment
  • thermal expansion

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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