High field x-ray diffraction study on a magnetic-field-induced valence transition in YbInCu 4

Y. H. Matsuda, T. Inami, K. Ohwada, Y. Murata, H. Nojiri, Y. Murakami, H. Ohta, W. Zhang, K. Yoshimura

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40 Citations (Scopus)

Abstract

We report the first high-field x-ray diffraction experiment using synchrotron x-rays and pulsed magnetic fields exceeding 30 T. The lattice deformation due to a magnetic-field-induced valence transition in YbInCu4 is studied. It has been found that the Bragg reflection profile at 32 K changes significantly at around 27 T due to the structural transition. In the vicinity of the transition field, the low field and high field phases alternate with the discontinuous change in the lattice constant. Thus, it is evident that the field-induced valence state transition is a first-order phase transition. The field dependence of the low-field-phase Bragg peak intensity is found to be roughly scaled with the magnetization.

Original languageEnglish
Article number024710
Journaljournal of the physical society of japan
Volume75
Issue number2
DOIs
Publication statusPublished - 2006 Feb

Keywords

  • Pulsed magnetic field
  • Valence transition
  • X-ray diffraction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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