| Numéro |
J. Phys. IV France
Volume 114, April 2004
|
|
|---|---|---|
| Page(s) | 333 - 334 | |
| DOI | https://doi.org/10.1051/jp4:2004114075 | |
J. Phys. IV France 114 (2004) 333
DOI: 10.1051/jp4:2004114075
High-pressure study of a Mott insulator (BEDT-TTF) (TCNQ)
M. Miyashita1, K. Uchiyama1, H. Taniguchi1, 1, K. Satoh1, Y. Uwatoko2, N. Tajima3, M. Tamura1 and R. Kato31 Department of Physics, Faculty of Science, Saitama University, Shimo-Ohkubo 255 Saitama, Saitama 338-8570, Japan
2 The Institute for Solid State Physics, University of Tokyo, Kashiwanoha 5-1-5 Kashiwa, Chiba 277-8581, Japan
3 RIKEN (The Institute of Physical and Chemical Research), Hirosawa 2-1 Wako, Saitama 351-0198, Japan
Abstract
The resistive state of the charge-transfer complex,
(BEDT-TTF)(TCNQ), was studied by application of hydrostatic pressure and
uniaxial strain. An obtained (hydrostatic) pressure-temperature phase
diagram was different from a reported one [1]: in our phase diagram,
low-temperature metallic phase exists. The results obtained by application
of uniaxial strains were discussed in terms of a role of the dimer of
BEDT-TTF in the present salt.
Key words. Organic conductor, high pressure, uniaxial strain,
metal-insulator transition, phase diagram.
© EDP Sciences 2004