Role of the dimerized gap due to anion ordering in spin-density wave phase of (TMTSF)2ClO4 at high magnetic fields

N. Matsunaga, A. Ayari, P. Monceau, A. Ishikawa, K. Nomura, M. Watanabe, J. Yamada, S. Nakatsuji

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Magnetoresistance measurements have been carried out along the highly conducting a axis in the field-induced spin-density wave (FISDW) phase of hydrogenated and deuterated (TMTSF)2ClO4 for various cooling rates through the anion ordering temperature. With increasing the cooling rate, (i) the high-field phase boundary βHI, observed at 27 T in hydrogenated samples for slowly cooled, is shifted towards a lower field, (ii) the last semimetallic SDW phase below βHI is suppressed, and (iii) the FISDW insulating phase above βHI is enhanced in both salts. The cooling rate dependence of the FISDW transition and of βHI in both salts can be explained by taking into account the peculiar SDW nesting vector stabilized by the dimerized gap due to anion ordering.

本文言語English
論文番号024425
ページ(範囲)244251-244255
ページ数5
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
66
2
DOI
出版ステータスPublished - 2002 7月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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