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RESEARCH PRODUCT
New magnetic conductors and superconductors based on BEDT-TTF and BEDS-TTF
Eugenio CoronadoCarlos Giménez-saizSimona CurreliCarlos J. Gómez-garcíasubject
SuperconductivityCondensed matter physicsMechanical EngineeringMetals and AlloysCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsMetalchemistry.chemical_compoundParamagnetismCrystallographychemistryMechanics of MaterialsElectrical resistivity and conductivityvisual_artMaterials Chemistryvisual_art.visual_art_mediumCritical fieldDerivative (chemistry)Tetrathiafulvalenedescription
Abstract Here we present our last results in the search for multifunctionality in conducting molecular materials obtained by combining paramagnetic molecular complexes with organic donors to produce paramagnetic molecular metals and superconductors. The structural and physical characterization of two new molecular paramagnetic superconductors ET 4 [H 3 OM(C 2 O 4 ) 3 ].PhBr (M III = Cr and Fe) are presented (ET = BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene). These salts present a superconductor transition at T c = 1.5 and 4.0 K, respectively and very anisotropic critical fields H c2a ≈ H c2b ≈0.5 T and H C2C ≈ 8 T for the Fe derivative. We will also present the structural and physical characterization of two new metallic paramagnetic systems: ET 4 [H 3 OM(C 2 O 4 ) 3 ].PhCl (M = Cr III and Fe III ) and five different new semiconducting paramagnets obtained with the donor bis(ethylenediselena)tetrathiafulvalene (BEDS-TTF = BEST) and [M(C 2 O 4 ) 3 ] 3− (M = Cr III and Fe III ) complexes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-09-01 | Synthetic Metals |