Cooling rate and composition dependences of magnetic susceptibility for Zr54-xCu30+xAl8Ag8 glassy alloys

Ichiro Seki, Rie Y. Umetsu, Guoqiang Xie, Naoyuki Nomura, Xin Min Wang, Takao Hanawa

Research output: Contribution to journalArticlepeer-review

Abstract

Cooling rate and composition dependences of the magnetic susceptibility for Zr54-xCu30+xAl8Ag8 glassy alloys which are candidate materials for magnetic resonance imaging (MRI) were investigated. Lower magnetic susceptibility was achieved by reducing Zr content in the present series of the alloys, and also by higher cooling rate during the preparing glassy alloys. The magnetic susceptibility values were hard to be explained by the simple free-electron model. It is suggesting that the effects of the enhancement of the density of states by 4d-conduction band should be taken into the consideration. The results obtained by utilizing the pair correlation functions suggested that the different magnetic susceptibilities between the ribbon and bulk glassy alloys were originated from the structural difference in the middle range order caused by the different cooling rates.

Original languageEnglish
Pages (from-to)1356-1360
Number of pages5
JournalMaterials Transactions
Volume54
Issue number8
DOIs
Publication statusPublished - 2013 Sep 3

Keywords

  • Amorphous
  • Cooling rate
  • Glassy alloy
  • Pair correlation function
  • Paramagnetic susceptibility

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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