Thermal conductivity of the quasi one-dimensional spin system Sr 2V3O9

M. Uesaka, T. Kawamata, N. Kaneko, M. Sato, K. Kudo, N. Kobayashi, Yoji Koike

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

We have measured the thermal conductivity along the [101] direction, κ[101], along the [101̄] direction, κ [101̄], and along the b-axis, κb, of the quasi one-dimensional S=1/2 spin system Sr2V3O9 in magnetic fields up to 14 T, in order to find the thermal conductivity due to spinons and to clarify whether the spin-chains run along the [101] or [101̄] direction. It has been found that both κ[101], kappa;[101̄] and κb show one peak around 10 K in zero field and that the magnitude of κ[101̄] is larger than those of κ[101] and kappa;b. By the application of magnetic field along the heat current, the peak of kappa; [101̄] is markedly suppressed, while the peaks of κ[101] and Kb little change. These results indicate that there is a large contribution of spinons to κ[101̄] and suggest that the spin-chains run along the [101̄] direction.

本文言語English
論文番号022068
ジャーナルJournal of Physics: Conference Series
200
SECTION 2
DOI
出版ステータスPublished - 2010

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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