Preparation of uranium-based magnetic amorphous alloys by RF sputtering

Y. Homma, Y. Takakuwa, Y. Shiokawa, K. Suzuki

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The effects of amorphization on ferromagnetic uranium compounds UGe2 and UGa2 were investigated. The amorphous alloys a-UGe2 and a-UGa2 were successfully produced by radio frequency (RF) sputtering. The ferromagnetic exchange of a-UGe2 is comparable with the crystalline compound. On the contrary, the ordering temperature and the magnetic moment of a-UGa2 are strongly reduced. The magnetic responses and the electron-transport properties of the alloys are different from those of the ferromagnetic crystalline counterparts, because the collinear spin arrangement was scattered by the random anisotropy originating from the orbital angular momentum of uranium ions.

Original languageEnglish
Pages (from-to)459-462
Number of pages4
JournalJournal of Alloys and Compounds
Volume271-273
DOIs
Publication statusPublished - 1998 Jun 12

Keywords

  • Amorphous alloy
  • Magnetism
  • Random anisotropy
  • Sputtering
  • UGa
  • UGe

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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