Transport anomaly in the low-energy regime of spin chains

研究成果: Article査読

41 被引用数 (Scopus)

抄録

The anomalous thermal conductivity in spin chains observed in experiments is studied for the low-temperature regime. In the effective dynamics with most realistic perturbations, the so-called umklapp terms are irrelevant to reduce the mean free path in the energy transport at even finite temperatures. This is consistent with the large conductivities found in recent experiments. The Drude weight which is the prefactor in the divergent conductivity is calculated, and the temperature dependence is discussed.

本文言語English
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
67
6
DOI
出版ステータスPublished - 2003 2月 10
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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