Robust but disordered collapsed-volume phase in a cerium alloy under the application of pulsed magnetic fields

J. P.C. Ruff, Z. Islam, R. K. Das, H. Nojiri, J. C. Cooley, C. H. Mielke

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We report synchrotron x-ray powder diffraction measurements of Ce 0.8La 0.1Th 0.1 subject to pulsed magnetic fields as high as 28 T. This alloy is known to exhibit a volume collapse upon cooling at ambient pressure, which is a modification of the γ-α transition in elemental cerium. Recently, it has been suggested on the basis of field-cooled resistivity and pulsed-field magnetization measurements that the volume collapse in this alloy can be suppressed by the application of magnetic fields. Conversely, our direct diffraction measurements show a robust collapsed phase, which persists in magnetic fields as high as 28 T. We also observe nanoscale disorder in the collapsed phase, which increasingly contaminates the high-temperature phase upon thermal cycling.

Original languageEnglish
Article number024104
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number2
DOIs
Publication statusPublished - 2012 Jan 9

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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