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- Title
Role of anion ordering in the coexistence of spin-density-wave and superconductivity in (TMTSF)ClO.
- Authors
Gerasimenko, Ya.; Prudkoglyad, V.; Kornilov, A.; Sanduleanu, S.; Qualls, J.; Pudalov, V.
- Abstract
Using various transport and magnetotransport probes, we study the coexistence of spin-density wave and superconductor states in (TMTSF)ClO at various degrees of ClO anions ordering. In the two-phase complex state when both superconductivity and spin-density wave are observed in transport, we find prehistory effects, enhancement of the superconducting critical field, and strong spatial anisotropy of the superconducting state. These features are inconsistent with the conventional model of structural inhomogeneities produced by anion ordering transition. We reveal instead that superconductor and spin-density wave regions overlap on the temperature-dimerization gap V phase diagram, where V is varied by anion ordering. The effect of anion ordering on (TMTSF)ClO properties is thus analogous to that of pressure on (TMTSF)X (X = PF or AsF), thereby unifying general picture of the coexistence of superconductivity and spin-density wave in these compounds.
- Subjects
CHARGE density waves; SUPERCONDUCTIVITY; CHLORITE minerals; SUPERCONDUCTORS; ANISOTROPY; PHASE diagrams; DIMERIZATION; ANIONS
- Publication
JETP Letters, 2013, Vol 97, Issue 7, p419
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364013070060