Static spin structure factor of CuGeO3 above spin-Peierls transition temperature

I. Harada, Y. Aoyama

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We study, by means of the quantum transfer matrix method, the finite-temperature behavior of the S = 1/2 antiferromagnetic chain with nearest neighbor and competing next nearest neighbor interactions, which is a model for the spin-Peierls material, CuGeO3. In particular, the static spin structure factor is found to display an interesting phenomenon as a consequence of the competition: a characteristic wave number for the maximum value of the structure factor takes a commensurate or an incommensurate value, depending on temperature. The boundary, called a Lifshitz temperature, can be found in this material. We discuss such behavior in connection with the experimental result of the neutron scattering in CuGeO3 above the spin-Peierls transition temperature.

Original languageEnglish
Pages (from-to)1105-1107
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume60
Issue number8
DOIs
Publication statusPublished - Jan 1 1999
EventProceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn
Duration: Nov 24 1998Nov 27 1998

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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