Interplay between doping and pressure effects in magnetism of UCo 1-xTxAl (T = Fe, Ni) single crystals

A. V. Andreev, N. V. Mushnikov, T. Goto, V. Sechovský, Y. Homma, Y. Shiokawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The metamagnetic behavior of UCoAl is easily transformed to ferromagnetism or conventional paramagnetism with doping UCoAl by suitable elements. The new ferromagnetic state is very sensitive to pressure. We demonstrate these phenomena by a magnetization study of the UCo1-xTxAl (T = Fe, Ni) single crystals. The Ni substitution for Co yields an increase of the critical field for the metamagnetic transition. The transition disappears for x = 0.10. The UCo0.90Fe0.05Ni0.05Al and UCo 0.98Fe0.02Al compounds exhibit ferromagnetism, however, a hydrostatic pressure of only 0.3 GPa is sufficient to suppress ferromagnetic ordering and restore the metamagnetic behavior of UCoAl-type. The ferromagnetism in UCo0.95Fe0.05Al is more stable and persists up to 0.8 GPa.

Original languageEnglish
Pages (from-to)499-501
Number of pages3
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - 2003 May

Keywords

  • Actinide compounds
  • Itinerant metamagnetism
  • Pressure effects

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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