Effect of pressure on the magnetic properties of U(In1-xSnx)3: Moment suppression in U(In0.6Sn0.4)3

A. Barla, J. P. Sanchez, B. Ni, B. P. Doyle, P. Vulliet, O. Leupold, R. Rüffer, D. Kaczorowski, J. Plessel, M. M. Abd-Elmeguid

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The volume dependence of the magnetic properties of U(In1-xSnx)3, with x=0.2 and 0.4, has been studied using 119Sn nuclear forward scattering of synchrotron radiation and Mössbauer spectroscopy at high pressures up to 25 GPa. The results show that in U(In0.8Sn0.2)3 the 5f magnetic moment is almost localized. Pressure induces an increase of the Néel temperature, while the transferred magnetic hyperfine field shows no change. Conversely, in U(In0.6Sn0.4)3 the transferred field decreases monotonically with increasing pressure and the Néel temperature goes through a maximum, showing a clear delocalization of the 5f electrons. This is discussed in terms of 5f-ligand hybridization and appears to lead to the formation of a high-pressure state characterized by strong dynamical spin correlations.

Original languageEnglish
Article number094425
Pages (from-to)944251-944258
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number9
DOIs
Publication statusPublished - 1 Sept 2002
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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