Unique f -level resonant state within the gap in Ce3 Au3 Sb4 single crystals: Magnetic, thermal, and transport properties

Han Oh Lee, Youn Jung Jo, Luis Balicas, P. Schlottmann, Cathie L. Condron, V. A. Sidorov, Peter Klavins, Susan M. Kauzlarich, J. D. Thompson, Z. Fisk

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The magnetic, thermal, and transport properties of single crystals of the narrow gap semiconductor Ce3 Au3 Sb4 have been studied. Transport data are consistent with an exponential activation and variable range hopping at low temperatures, which is characteristic of weak disorder and localization. The specific heat and the magnetic susceptibility data suggest the existence of a large density of states of localized states in the gap. The physics is then different from standard Kondo insulators. From its unique physical properties, we propose a three band model (valence, conduction, and f bands) with weak disorder that explains most of the experimental findings.

Original languageEnglish (US)
Article number155204
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number15
DOIs
StatePublished - Oct 3 2007

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Unique f -level resonant state within the gap in Ce3 Au3 Sb4 single crystals: Magnetic, thermal, and transport properties'. Together they form a unique fingerprint.

Cite this