(Pressure, temperature) phase diagram of the quasi-1D 3/4 filled organic salt (o-DMTTF)2Br - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Physica B: Condensed Matter Année : 2012

(Pressure, temperature) phase diagram of the quasi-1D 3/4 filled organic salt (o-DMTTF)2Br

Résumé

The family of quasi-one-dimensional organic salts (o-DMTTF)2X, (X=Cl, Br, I) exhibits regular stacks and a high symmetry (tetragonal) structure which provides a perfect 3/4 band filling system with strong electronic correlations. We report transport measurements, resistivity and thermopower, performed as a function of pressure and/or temperature on (o-DMTTF)2Br which presents all the characteristics of the family. Coupled with data obtained from X-rays diffraction and magnetic susceptibility experiments at ambient pressure, in order to identify the insulating ground states, our data allowed to establish the (pressure, temperature) phase diagram for (o-DMTTF)2Br which differs significantly from those previously reported in other 3/4 filled systems.

Domaines

Chimie organique

Dates et versions

hal-00694169 , version 1 (03-05-2012)

Identifiants

Citer

Pascale Auban-Senzier, C. R. Pasquier, Olivier Jeannin, Marc Fourmigué. (Pressure, temperature) phase diagram of the quasi-1D 3/4 filled organic salt (o-DMTTF)2Br. Physica B: Condensed Matter, 2012, 407 (11), pp.1700-1703. ⟨10.1016/j.physb.2012.01.010⟩. ⟨hal-00694169⟩
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