Evidence for magnetic state of uranium in U2(Fe1-xCox)13.6Si3.4

A. V. Andreev, Y. Homma, T. Komatsubara, Y. Shiokawa, I. Satoh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Single crystals of solid solutions U2(Fe1-xCox)13.6Si3.4 (0 ≤ x ≤ 1) having the hexagonal Th2Ni17 crystal structure were grown by a Czochralski method. Magnetization measurements along the principal axes reveal the easy-plane magnetic anisotropy in compounds with x up to 0.95, whereas terminal compound U2Co13.6Si3.4 has the uniaxial anisotropy. Magnitudes of the anisotropy constants K1 and K2 for x up to ∼0.8 are high enough to suggest a U contribution to the anisotropy, i.e., a magnetic state of U. The observed rapid weakening of the anisotropy and the change of its type at highest Co content are attributed to the 3d-metal sublattice, namely to the considerable change of c/a ratio at the Fe{single bond}Co substitution in the "dumbbells".

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Alloys and Compounds
Volume422
Issue number1-2
DOIs
Publication statusPublished - 2006 Sep 28

Keywords

  • Ferromagnetism
  • Magnetic anisotropy
  • RFe
  • Single crystals
  • Uranium intermetallics

ASJC Scopus subject areas

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

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