Crystal-lattice modulation and phonon anomaly associated with strong p-f mixing effect of CeSb

K. Iwasa, A. Hannan, M. Kohgi, M. Braden, J. M. Mignot, H. Kitazawa, T. Suzuki

Research output: Contribution to journalArticlepeer-review

Abstract

4f-electron states in unusual magnetically ordered phases of the low-carrier system CeSb have been investigated by X-ray diffraction and inelastic neutron scattering. Satellite peaks of the X-ray diffraction were found below TN = 17 K. The observed pattern is explained by a model based on the periodic stacking of the ordered Ce-ion planes with the Γ8-like p-f mixing state and the paramagnetic Γ7 planes. Thus, the 4f-electron orbital order is evidenced. Inelastic neutron scattering experiments show a new excitation with a phonon character appearing below TN. This excitation is thought to be a vibration mode changing the interatomic distance between the neighboring Ce and Sb ions forming the p-f mixing orbital.

Original languageEnglish
Pages (from-to)S1779-S1781
JournalApplied Physics A: Materials Science and Processing
Volume74
Issue numberSUPPL.II
DOIs
Publication statusPublished - 2002 Dec 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Crystal-lattice modulation and phonon anomaly associated with strong p-f mixing effect of CeSb'. Together they form a unique fingerprint.

Cite this