Transport anomaly in the low-energy regime of spin chains

研究成果: Article

37 引用 (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.

元の言語English
記事番号064410
ページ(範囲)644101-644104
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
67
発行部数6
出版物ステータスPublished - 2003 2 1
外部発表Yes

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anomalies
conductivity
mean free path
thermal conductivity
perturbation
Temperature
temperature dependence
energy
Thermal conductivity
Experiments
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

Transport anomaly in the low-energy regime of spin chains. / Saitou, Keiji.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 67, 番号 6, 064410, 01.02.2003, p. 644101-644104.

研究成果: Article

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