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Field-induced CDW in HMTSF-TCNQ
- Field-induced CDW in HMTSF-TCNQ
- 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
- SCOPUS Author ID
- Issue Date
- Journal Title
- Physica B: Condensed Matter
- vol. 407, no. 11, pp. 1927 - 1929
- SCI; SCIE; SCOPUS
- 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.
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