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

I. Harada, Y. Aoyama

Research output: Contribution to journalArticle

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 - Sep 1999

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spin temperature
Superconducting transition temperature
transition temperature
Transfer matrix method
Neutron scattering
matrix methods
Temperature
temperature
neutron scattering
interactions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Static spin structure factor of CuGeO3 above spin-Peierls transition temperature. / Harada, I.; Aoyama, Y.

In: Journal of Physics and Chemistry of Solids, Vol. 60, No. 8, 09.1999, p. 1105-1107.

Research output: Contribution to journalArticle

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