Publication year
2004Source
Journal de Physique Iv, 114, (2004), pp. 463-466ISSN
Publication type
Article / Letter to editor

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Organization
Condensed Matter Science (HFML)
Journal title
Journal de Physique Iv
Volume
vol. 114
Page start
p. 463
Page end
p. 466
Subject
Correlated Electron Systems / High Field Magnet Laboratory (HFML)Abstract
New ethylenedithiotetrathiafulvalene (EDT-TTF)-based radical cation salts with mercury containing anions of different size and shape have been isolated and studied. Among these compounds the new ambient pressure organic superconductor (EDT-TTF)(4)Hg3-deltaI8, deltasimilar to0.1divided by 0.2, with T-c=8.1K has been synthesized. Depending on a EDT-TTF/HgI2 ratio, electrochemical crystallization of EDT-TTF affords either hexagonal (EDT-TTF)(4)Hg3+/-deltaI8, (delta-0.1divided by0.2) or rectangular (EDT-TTF)(2)Hgl(3) crystals. Three types of hexagonal crystals were certified using conductivity ineaSUrenients: the crystals with superconducting temperature Tc=8.1K under ambient pressure (1), those undergoing a superconducting transition at 5<T(c<)8K under psimilar to0.3 kbar (2), and the crystals undergoing a metal-insulator transition below 35K (3)
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- Faculty of Science [33782]
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