Scientific article
English

The case for universality of the phase diagram of the Fabre and Bechgaard salts

Published inThe European physical journal. B, Condensed matter physics, vol. 21, no. 2, p. 175-183
Publication date2001
Abstract

We report the observation of superconductivity in the spin-Peierls Fabre salt (TMTTF)2PF6 from pressure dependent electrical transport measurements above a threshold of 4.35 GPa. The data complete the sequence of ground states of this compound in the temperature and pressure plane adducing an empirical basis to the universal character of the phase diagram of the Fabre salts and their selenide analogues, the Bechgaard salts. The structure of the phase diagram at the approach of the crossover between spin-density wave and superconducting states is compared with the results of scaling theory of the interplay between both electronic instabilities under pressure. The comparison supports the view that magnetism and superconductivity in these compounds have a common electronic origin.

Keywords
  • Transport properties
  • Fermions in reduced dimensions
  • Nonconventional mechanisms
  • High-pressure and shock-wave effects in solids and liquids
Citation (ISO format)
WILHELM, Heribert et al. The case for universality of the phase diagram of the Fabre and Bechgaard salts. In: The European physical journal. B, Condensed matter physics, 2001, vol. 21, n° 2, p. 175–183. doi: 10.1007/PL00011120
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Article (Published version)
accessLevelRestricted
Identifiers
Additional URL for this publicationhttp://link.springer.com/10.1007/PL00011120
Journal ISSN1434-6028
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