Some thermal transport properties of the FPU model with quadratic pinning

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Thermal transport properties of the FPU β model with a quadratic pinning term are investigated for various couplings and temperatures. In particular, the size dependence of the thermal conductivity, κ α Lα, is studied. α agrees with that of the FPU β model (with no pinning) at high temperatures but decreases at low temperatures. This crossover behavior occurs at a temperature depending on the strength of the quadratic pinning.

元の言語English
ページ(範囲)717-724
ページ数8
ジャーナルProgress of Theoretical Physics
119
発行部数5
DOI
出版物ステータスPublished - 2008 5 1

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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