Localized states within the gap of Ce3 Au3 Sb4

Han Oh Lee; V. A. Sidorov; P. Schlottmann; Cathie Condron; Peter Klavins; Susan M. Kauzlarich; J. D. Thompson; Z. Fisk

doi:10.1016/j.physb.2007.10.309

Localized states within the gap of Ce₃ Au₃ Sb₄

Han Oh Lee, V. A. Sidorov, P. Schlottmann, Cathie Condron, Peter Klavins, Susan M. Kauzlarich, J. D. Thompson, Z. Fisk

Chemistry

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The temperature dependence of the specific heat and of the resistivity under pressure has been measured for single crystals of the semiconductor Ce₃ Au₃ Sb₄. The transport data follow an exponential activation and variable range hopping at low T, consistent with weak disorder and localization, while C / T has a - ln T dependence with large entropy. Thus the properties of Ce₃ Au₃ Sb₄ are very different from those of ordinary Kondo insulators.

Original language	English (US)
Pages (from-to)	1476-1478
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.309
State	Published - Apr 1 2008

Keywords

Heavy Fermion
Kondo insulator
Pressure
Resistivity
Specific heat

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.physb.2007.10.309

Cite this

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title = "Localized states within the gap of Ce3 Au3 Sb4 ",

abstract = "The temperature dependence of the specific heat and of the resistivity under pressure has been measured for single crystals of the semiconductor Ce3 Au3 Sb4. The transport data follow an exponential activation and variable range hopping at low T, consistent with weak disorder and localization, while C / T has a - ln T dependence with large entropy. Thus the properties of Ce3 Au3 Sb4 are very different from those of ordinary Kondo insulators.",

keywords = "Heavy Fermion, Kondo insulator, Pressure, Resistivity, Specific heat",

author = "Lee, {Han Oh} and Sidorov, {V. A.} and P. Schlottmann and Cathie Condron and Peter Klavins and Kauzlarich, {Susan M.} and Thompson, {J. D.} and Z. Fisk",

year = "2008",

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T1 - Localized states within the gap of Ce3 Au3 Sb4

AU - Lee, Han Oh

AU - Sidorov, V. A.

AU - Schlottmann, P.

AU - Condron, Cathie

AU - Klavins, Peter

AU - Kauzlarich, Susan M.

AU - Thompson, J. D.

AU - Fisk, Z.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - The temperature dependence of the specific heat and of the resistivity under pressure has been measured for single crystals of the semiconductor Ce3 Au3 Sb4. The transport data follow an exponential activation and variable range hopping at low T, consistent with weak disorder and localization, while C / T has a - ln T dependence with large entropy. Thus the properties of Ce3 Au3 Sb4 are very different from those of ordinary Kondo insulators.

AB - The temperature dependence of the specific heat and of the resistivity under pressure has been measured for single crystals of the semiconductor Ce3 Au3 Sb4. The transport data follow an exponential activation and variable range hopping at low T, consistent with weak disorder and localization, while C / T has a - ln T dependence with large entropy. Thus the properties of Ce3 Au3 Sb4 are very different from those of ordinary Kondo insulators.

KW - Heavy Fermion

KW - Kondo insulator

KW - Pressure

KW - Resistivity

KW - Specific heat

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