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

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

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number022068
JournalJournal of Physics: Conference Series
Volume200
Issue numberSECTION 2
DOIs
Publication statusPublished - Jan 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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