Kondo interactions in the CeOs4Sb12 skutterudite studied by inelastic neutron scattering
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Published:2006
Issue:12
Volume:55
Page:6643
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Yang Chang-Ping ,Zhou Zhi-Hui ,Wang Hao ,K. Iwasa ,M. Kohgi ,
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.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy