Kondo interactions in the CeOs4Sb12 skutterudite studied by inelastic neutron scattering

Chang Ping Yang, Zhi Hui Zhou, Hao Wang, Kazuaki Iwasa, M. Kohgi

Research output: Contribution to journalArticle

Abstract

The energy gap near Fermi surface due to the hybridization of Ce3+ 4f1 and conduction electrons is the key to understand the physical properties of the CeOs4Sb12 compound, such as Kondo insulating behavior, moment quench of Ce3+ at low temperatures and the characteristics of heavy fermion. In this work, inelastic neutron scattering spectra of powder CeOs4Sb12 sample were collected at different temperatures using LAM-D neutron spectrometer at KEK pulsed neutron source. The result indicates that the CeOs4Sb12 skutterudite is a Kondo insulator with a c-f interaction of 3.1 meV. The Debye temperature is determined as 317 K.

Original languageEnglish
Pages (from-to)6643-6646
Number of pages4
JournalWuli Xuebao/Acta Physica Sinica
Volume55
Issue number12
Publication statusPublished - 2006 Dec 1

Keywords

  • Filled skutterudite
  • Inelastic neutron scattering
  • Kondo insulator

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yang, C. P., Zhou, Z. H., Wang, H., Iwasa, K., & Kohgi, M. (2006). Kondo interactions in the CeOs4Sb12 skutterudite studied by inelastic neutron scattering. Wuli Xuebao/Acta Physica Sinica, 55(12), 6643-6646.