Correlations, dimensionality and instabilities in organic superconductors

D. Jérome, L. Balicas, K. Behnia, W. Kang, P. Wzietek, L. Hubert, C. Bourbonnais

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We discuss the role of Coulombic repulsion in organic superconductors exhibiting quasi-one-dimensional transport properties. A recent investigation in high magnetic fields shows that the charge localization occurring at low temperature in a 1-D half-filled band is suppressed by the 1-D to 2-D (3-D) cross-over in selenium compounds. However, a localization around 30 K in the non-ordered phase can be reactivated by the application of a high transverse magnetic field. This phenomenon provides an interpretation for the large transverse magnetoresistance observed in quasi-1-D conductors with open Fermi surfaces. The intermediate (strong) coupling limit is valid for the spin degree of freedom whereas the charge is governed by the strength of the Umklapp scattering varying by a large factor from sulfur to selenium compounds and under pressure.

Original languageEnglish
Pages (from-to)559-564
Number of pages6
JournalPhysica B: Condensed Matter
Issue numberC
StatePublished - 1 Feb 1995


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