Wiedemann-Franz law in the SU(N) Wolff model

Research output: Contribution to journalArticle

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Abstract

We study the electrical and thermal transport through the SU (N) Wolff model with the use of bosonization. The Wilson ratio reaches unity as N grows to infinity. The electric conductance is dominated by the charge channel, and decreases monotonically with increasing interaction. The thermal conductivity enhances in the presence of a local Hubbard U. The Wiedemann-Franz law is violated; the Lorentz number depends strongly on the interaction parameter, which can be regarded as a manifestation of spin-charge separation.

Original languageEnglish
Article number161101
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number16
DOIs
Publication statusPublished - 2006

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Electric conductance
Thermal conductivity
polarization (charge separation)
infinity
unity
thermal conductivity
interactions
Hot Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Wiedemann-Franz law in the SU(N) Wolff model. / Dóra, B.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 74, No. 16, 161101, 2006.

Research output: Contribution to journalArticle

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