Crystal structure and magnetic state of U2XSi3 (X = Fe, Pt)

T. Yamamura, D. X. Li, K. Yubuta, Y. Shiokawa

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

Atomic arrangement in U2XSi3 with X = Pt and Fe was investigated by electron diffraction and X-ray powder diffraction and discussed in conjunction with the results of magnetic susceptibility, magnetization, specific heat electrical resistivity measurements. U2PtSi 3 crystallizes in the simple AlB2-type structure, where Pt and Si atoms are located at B sites disorderly and shows spin glass behavior at low temperature. Contrarily, the electron diffraction pattern for U 2FeSi3 reveals a superstructure doubling the lattice parameter as that observed for U2RuSi3, suggesting absence of the random structure. In this structurally ordered compound U 2FeSi3, no spin glass behavior is detected.

Original languageEnglish
Pages (from-to)1324-1328
Number of pages5
JournalJournal of Alloys and Compounds
Volume408-412
DOIs
Publication statusPublished - 2006 Feb 9
EventProceedings of the Rare Earths'04 in Nara, Japan -
Duration: 2004 Nov 72004 Nov 12

Keywords

  • Atomic arrangement
  • Electron diffraction
  • Specific heat
  • Spin glass
  • UFeSi
  • UPtSi

ASJC Scopus subject areas

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

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