Thermal conductivity in the frustrated two-leg spin- ladder system BiCu2PO6

H. Nagasawa, T. Kawamata, K. Naruse, M. Ohno, Y. Matsuoka, H. Sudo, Y. Hagiya, M. Fujita, T. Sasaki, Y. Koike

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

We have measured temperature and magnetic-field dependences of the thermal conductivity of single crystals of the frustrated two-leg spin-ladder system BiCu2PO6 in magnetic fields up to 14 T. It has been found that the temperature dependence of the thermal conductivity along every principal crystallographic axis shows two peaks in zero field but that the magnitude of the thermal conductivity along the b-axis parallel to spin ladders, κb, is significantly larger than those of the thermal conductivity along the a-axis, κa, and along the c- axis, κc, at high temperatures above 7 K. These results suggest that the thermal conductivity due to spins probably exists only in κb. Furthermore, it has been found that both magnetic-field dependences of κa and κb at 3 K show kinks at ∼ 7 T and ∼ 10 T, where the spin state may change.

Original languageEnglish
Article number042012
JournalJournal of Physics: Conference Series
Volume568
DOIs
Publication statusPublished - 2014
Event27th International Conference on Low Temperature Physics, LT 2014 - Buenos Aires, Argentina
Duration: 2014 Aug 62014 Aug 13

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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