Evidence for crystal-lattice modulation due to spatially restricted enhancement of mixing effect in the low-carrier system CeSb

Kazuaki Iwasa, Yoshihito Arakaki, Masahumi Kohgi, Takashi Suzuki

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

In order to investigate the unusual magnetic properties of the low-carrier system CeSb, X-ray diffraction studies at low temperatures have been performed. Below the magnetic transition temperature of TN = 17 K, several X-ray satellite peaks and their temperature variations were observed, which indicate that the modulated structures of a crystal lattice coexist with the long-period magnetic structures in CeSb. The observed wave numbers of the lattice modulations and the satellite-peak intensities are explained by the periodical arrangement of short and long distances between magnetic layers. The short interlayer distance is due to enhancement of p-f mixing effect which is spatially restricted within the ferromagnetic layers of Γ8-like Ce ions appearing in the lattice of Γ7 Ce ions. The interlayer distance due to Γ8-like state is shorter by 0.1% than that between normal Γ7 Ce layers.

Original languageEnglish
Pages (from-to)2498-2501
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number8
DOIs
Publication statusPublished - 1999 Jan 1

Keywords

  • CeSb
  • Crystal-lattice modulation
  • Low-carrier-density system
  • X-ray diffraction
  • p-f mixing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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