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Field-induced CDW in HMTSF-TCNQ

Title
Field-induced CDW in HMTSF-TCNQ
Authors
Murata K.Kang W.Masuda K.Kuse T.Sasaki T.Yokogawa K.Yoshino H.Brooks J.S.Sang Choi E.Kiswandhi A.Kato R.
Ewha Authors
강원
SCOPUS Author ID
강원scopus
Issue Date
2012
Journal Title
Physica B: Condensed Matter
ISSN
0921-4526JCR Link
Citation
vol. 407, no. 11, pp. 1927 - 1929
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Field-induced successive transitions were observed in magnetoresistance in the quasi-one-dimensional organic conductor, HMTSF-TCNQ, hexamethylene- tetraselena-fulvalene-tetracyanoquinodimethane. The magnetoresistance exhibits kink transitions accompanying hysteresis at pressures around 1 GPa, but neither at p=0 nor at 2 GPa. At p=0 and below 30 K, this material undergoes charge density wave (CDW) state, which is suppressed around 1 GPa, where successive transitions are observed. Since these behavior is only observed at the boundary in pressure between insulator and metal, and the nature of the insulating state is CDW at p=0, it is strongly suggested that the successive transitions observed in magnetoresistance might be associated with CDW, accordingly a field-induced CDW by the one-dimensionalization by strong magnetic field ranging from 10 to 30 T. The behaviors are compared with previously claimed FICDW and the established FISDW (field-induced-spin-density-wave). © 2012 Elsevier B.V. All rights reserved.
DOI
10.1016/j.physb.2012.01.066
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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