Transport properties of the metallic state of TMTSF-DMTCNQ
- 1 January 1979
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 40 (12), 1199-1206
- https://doi.org/10.1051/jphys:0197900400120119900
Abstract
We report the transport properties (longitudinal and transverse conductivity, magnetoresistance and thermopower) of TMTSF-DMTCNQ for pressures up to 13 kbar and temperatures down to 1.2 K together with the phase diagram which results from these measurements. The most striking results are the occurrence of a first order insulator-metal low temperature transition as pressure is increased above 9.75 kbar and the properties of the metallic state. At pressures sufficiently high to quench the Peierls transition the helium temperature conductivity is greater than that found in any organic conductor at any temperature (σ∥ ≳ 105 (Ωcm)-1) and an enormous magnetoresistance (Δρ/ρ0 ~ 15) is found for a field of 75 kOe perpendicular to the conducting chainsKeywords
This publication has 7 references indexed in Scilit:
- Fluctuation conductivity in 1-D conductor tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ)Journal de Physique Lettres, 1979
- Lattice dynamics and electrical properties of commensurate one-dimensional charge-density-wave systemsPhysical Review B, 1978
- Two band transport and disorder effects in a series of organic alloys: (TTF1-xTSeFx)-TCNQ (tetrathiafulvalene-tetraselenafulvalene-tetracyanoquinodimethane)Solid State Communications, 1976
- A model for the electronic band structure of HMTSeF-TCNQSolid State Communications, 1976
- Semi-metallic behaviour of HMTSF-TCNQ at low temperatures under pressureSolid State Communications, 1976
- The hall effect in HMTSeF-TCNQJournal de Physique Lettres, 1976
- Low-Temperature Metallic Behavior and Resistance Minimum in a New Quasi One-Dimensional Organic ConductorPhysical Review Letters, 1975