Synchrotron X-ray diffraction studies of the incommensurate phase of a spin-Peierls system CuGeO3 in strong magnetic fields

Yasuo Narumi, Koichi Katsumata, Yoshikazu Tabata, Shojiro Kimura, Yoshikazu Tanaka, Tetsuya Nakamura, Susumu Shimomura, Masaaki Matsuda, Isao Harada, Yoshihiro Nishiyama, Tetsuya Ishikawa, Hideo Kitamura, Toru Hara, Takashi Tanaka, Kenji Tamasaku, Makina Yabashi, Shunji Goto, Haruhiko Ohashi, Kunikazu Takeshita, Toru OhataTomohiro Matsushita, Teruhiko Bizen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Synchrotron X-ray diffraction measurements on a spin-Peierls material CuGeO3 in applied magnetic fields, H, up to 15 T are made. We find that the temperature, T, dependence of the incommensurate Bragg peak at a lower H is quite different from that at a higher H. At sufficiently high fields, we find that the lattice incommensurability, δ1, is almost independent of T, while at H slightly above the critical field = 12.25 T for the commensurate to incommensurate transition, δ1 decreases with increasing T. We interpret that this finding is due to a stabilization of the incommensurate state by a strong magnetic field which suppresses thermal fluctuations.

Original languageEnglish
Pages (from-to)2650-2653
Number of pages4
Journaljournal of the physical society of japan
Volume73
Issue number10
DOIs
Publication statusPublished - 2004 Oct 1

Keywords

  • CuGeO
  • High magnetic field
  • Incommensurate phase
  • Spin-Peierls compound
  • Synchrotron X-ray diffraction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Narumi, Y., Katsumata, K., Tabata, Y., Kimura, S., Tanaka, Y., Nakamura, T., Shimomura, S., Matsuda, M., Harada, I., Nishiyama, Y., Ishikawa, T., Kitamura, H., Hara, T., Tanaka, T., Tamasaku, K., Yabashi, M., Goto, S., Ohashi, H., Takeshita, K., ... Bizen, T. (2004). Synchrotron X-ray diffraction studies of the incommensurate phase of a spin-Peierls system CuGeO3 in strong magnetic fields. journal of the physical society of japan, 73(10), 2650-2653. https://doi.org/10.1143/JPSJ.73.2650