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

I. Harada; Y. Aoyama

doi:10.1016/S0022-3697(99)00061-X

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

I. Harada, Y. Aoyama

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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 language	English
Pages (from-to)	1105-1107
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	60
Issue number	8
DOIs	https://doi.org/10.1016/S0022-3697(99)00061-X
Publication status	Published - Jan 1 1999
Event	Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn Duration: Nov 24 1998 → Nov 27 1998

ASJC Scopus subject areas

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

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title = "Static spin structure factor of CuGeO3 above spin-Peierls transition temperature",

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.",

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T1 - Static spin structure factor of CuGeO3 above spin-Peierls transition temperature

AU - Harada, I.

AU - Aoyama, Y.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - 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.

AB - 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.

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JO - Journal of Physics and Chemistry of Solids

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T2 - Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7)

Y2 - 24 November 1998 through 27 November 1998

ER -

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

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