Ferromagnetism induced in UCoAl under uniaxial pressure

Y. Ishii, M. Kosaka, Y. Uwatoko, A. V. Andreev, V. Sechovský

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

We present the temperature and magnetic-field dependencies of the c-axis magnetization of a UCoAl single crystal under various uniaxial pressures exerted along the c-axis. The main result obtained is the uniaxial-pressure-induced reduction of the critical field of the metamagnetic transition followed by the formation of ferromagnetism at higher uniaxial-pressures. These and other associated results are discussed in comparison with corresponding data obtained by applying hydrostatic pressure on the same material. A scenario considering a variation of the anisotropic 5f-ligand hybridization and its consequences induced by the two different types of applied pressure is an important base for the discussion. The pressure-induced variations of the 5f-3d hybridization within the basal plane of the ZrNiAl-type hexagonal structure seem to be the underlying aspect of the evolution of the magnetism in UCoAl.

Original languageEnglish
Pages (from-to)160-166
Number of pages7
JournalPhysica B: Condensed Matter
Volume334
Issue number1-2
DOIs
Publication statusPublished - 2003
Externally publishedYes

Keywords

  • Ferromagnetism
  • Itinerant-electron metamagnetism
  • Magnetic properties
  • UCoAl
  • Uniaxial pressure
  • Uranium intermetallics

ASJC Scopus subject areas

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

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