High pressure study of the organic compound (TMTTF)2BF4 |
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Authors: | A.-S. Rüetschi and D. Jaccard |
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Affiliation: | (1) DPMC, University of Geneva, 24 quai Ernest-Ansermet, 1211 Genève 4, Switzerland |
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Abstract: | 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. |
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Keywords: | KeywordHeading" >PACS 74.70.Kn Organic superconductors 74.62.Fj Pressure effects |
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