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

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Title: Role of the dimerized gap due to anion ordering in spin-density wave phase of (TMTSF)2ClO4 at high magnetic fields
Authors: Matsunaga, N.1 Browse this author →KAKEN DB
Ayari and, A. Browse this author
Monceau, P. Browse this author
Ishikawa and, A. Browse this author
Nomura, K. Browse this author
Watanabe, M. Browse this author
Yamada, J. Browse this author
Nakatsuji, S. Browse this author
Authors(alt): 松永, 悟明1
Issue Date: 1-Jul-2002
Publisher: American Physical Society
Journal Title: PHYSICAL REVIEW B
Volume: 66
Issue: 2
Start Page: 024425
Publisher DOI: 10.1103/PhysRevB.66.024425
Abstract: Magnetoresistance measurements have been carried out along the highly conducting a axis in the fieldinduced 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.
Rights: Copyright © 2002 American Physical Society
Relation: http://www.aps.org/
Type: article
URI: http://hdl.handle.net/2115/5741
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松永 悟明

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