Organic superconductor with an incommensurate anion structure: „MDT-TSF...„AuI2...0.44
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چکیده
The degree of charge transfer and the upper critical field of the organic superconductor ~MDT-TSF!(AuI2)x have been investigated ~MDT-TSF: methylenedithio-tetraselenafulvalene!. The x-ray oscillation photograph indicates that the anion lattice is incommensurate with the donor lattice, and the chemical composition is ~MDT-TSF!(AuI2)0.44 . The charge-transfer degree of this salt is 0.44. The electrical resistivity and the Seebeck coefficient indicate that this salt is a good Fermi liquid above the superconducting transition temperature. The upper critical fields show anisotropic three-dimensional character in spite of the complicated incommensurate structure, and are within the Clogston-Chandrasekhar paramagnetic limit in all directions.
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