Anomalous thermal conductivity of semi-metallic superconductors with electron-hole compensation

Hiroto Adachi; Manfred Sigrist

doi:10.1143/JPSJ.77.053704

Anomalous thermal conductivity of semi-metallic superconductors with electron-hole compensation

Hiroto Adachi, Manfred Sigrist

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

1 Citation (Scopus)

Abstract

The effects of low carrier density and carrier compensation on mixed-state thermal transport are investigated beyond the quasiclassical approximation. It is shown that, contrary to the usual observations, the interplay of the two effects leads to an increase in the thermal conductivity immediately below the upper critical field H_c2. Our result can account for the anomalous behavior of the mixed-state thermal conductivity near H_c2 recently observed in URu₂Si₂.

Original language	English
Article number	053704
Journal	journal of the physical society of japan
Volume	77
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.77.053704
Publication status	Published - May 1 2008
Externally published	Yes

Keywords

Electron-hole compensation
Heavy fermion superconductor
Mixed-state thermal conductivity
Semi-metallic superconductor

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.77.053704

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abstract = "The effects of low carrier density and carrier compensation on mixed-state thermal transport are investigated beyond the quasiclassical approximation. It is shown that, contrary to the usual observations, the interplay of the two effects leads to an increase in the thermal conductivity immediately below the upper critical field Hc2. Our result can account for the anomalous behavior of the mixed-state thermal conductivity near Hc2 recently observed in URu2Si2.",

keywords = "Electron-hole compensation, Heavy fermion superconductor, Mixed-state thermal conductivity, Semi-metallic superconductor",

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AU - Sigrist, Manfred

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N2 - The effects of low carrier density and carrier compensation on mixed-state thermal transport are investigated beyond the quasiclassical approximation. It is shown that, contrary to the usual observations, the interplay of the two effects leads to an increase in the thermal conductivity immediately below the upper critical field Hc2. Our result can account for the anomalous behavior of the mixed-state thermal conductivity near Hc2 recently observed in URu2Si2.

AB - The effects of low carrier density and carrier compensation on mixed-state thermal transport are investigated beyond the quasiclassical approximation. It is shown that, contrary to the usual observations, the interplay of the two effects leads to an increase in the thermal conductivity immediately below the upper critical field Hc2. Our result can account for the anomalous behavior of the mixed-state thermal conductivity near Hc2 recently observed in URu2Si2.

KW - Electron-hole compensation

KW - Heavy fermion superconductor

KW - Mixed-state thermal conductivity

KW - Semi-metallic superconductor

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Anomalous thermal conductivity of semi-metallic superconductors with electron-hole compensation

Abstract

Keywords

ASJC Scopus subject areas

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