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High pressure study of the organic compound (TMTTF)2BF4

Rüetschi, A.-S ; Jaccard, D.

In: The European Physical Journal B, 2009, vol. 67, no. 1, p. 43-49

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    Titre
    • High pressure study of the organic compound (TMTTF)2BF4
    Auteur
    • Rüetschi, A.-S. DPMC, University of Geneva, 24 quai Ernest-Ansermet, 1211, Genève 4, Switzerland
    • Jaccard, D.. DPMC, University of Geneva, 24 quai Ernest-Ansermet, 1211, Genève 4, Switzerland
    Type de document
    • Postprint
    Identifiant OAI-PMH
    • oai:doc.rero.ch:316488
    Summary
    High pressure resistivity measurements of the organic compound (TMTTF)2BF4 have been performed in a newly developped Bridgman cell providing good pressure conditions on a wide pressure range. For the first time in this compound a zero resistance superconducting state is observed between 3 and 4 GPa. At temperatures above the superconducting transition, the resistivities of the two high quality samples show a different behavior. One sample, provides indications for a magnetic quantum critical point at the maximum of Tc, whereas in the other antiferromagnetic spin-fluctuations are present above Tc