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

研究成果: Article査読

3 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2650-2653
ページ数4
ジャーナルjournal of the physical society of japan
73
10
DOI
出版ステータスPublished - 2004 10月

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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