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          Document History for Document ID 7516

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Document Version Version Comment Date Status
7516.0 [No comment] 16.10.2006 15:37 Released

ID: 7516.0, MPI für Festkörperforschung / FKF Publikationen 2002
Role of the dimerized gap due to anion ordering in spin-density wave phase of (TMTSF)2ClO4 at high magnetic fields
Authors:Matsunaga, N.; Ayari, A.; Monceau, P.; Ishikawa, A.; Nomura, K.; Watanabe, M.; Yamada, J.; Nakatsuji, S.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Physical Review B
Volume:66
Issue / Number:2
Sequence Number of Article:024425
Review Status:Peer-review
Audience:Not Specified
Abstract / Description: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)(2)ClO4 for
various cooling rates through the anion ordering temperature.
With increasing the cooling rate, (i) the high-field phase
boundary beta(HI), observed at 27 T in hydrogenated samples for
slowly cooled, is shifted towards a lower field, (ii) the last
semimetallic SDW phase below beta(HI) is suppressed, and (iii)
the FISDW insulating phase above beta(HI) is enhanced in both
salts. The cooling rate dependence of the FISDW transition and
of beta(HI) in both salts can be explained by taking into
account the peculiar SDW nesting vector stabilized by the
dimerized gap due to anion ordering.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Hokkaido Univ, Div Phys, Sapporo, Hokkaido 0600810, Japan
; UJF, Lab Associe, CNRS, CRTBT, F-38042 Grenoble 9, France
; MPI FKF, CNRS, Grenoble High Field Lab, F-38042 Grenoble 9, France
; Himeji Inst Technol, Dept Mat Sci, Kamigohhri 6781297, Japan
Identifiers:ISI:000177338400083
ISSN:0163-1829