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Superconductivity at 10 K and ambient pressure in the organic metal (BEDT - TTF)2Cu(SCN)2

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Gärtner,  S.
Max Planck Institute for Medical Research, Max Planck Society;

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Gogu,  E.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

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Heinen,  I.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

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Keller,  H.J.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

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Klutz,  T.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Gärtner, S., Gogu, E., Heinen, I., Keller, H., Klutz, T., & Schweitzer, D. (1988). Superconductivity at 10 K and ambient pressure in the organic metal (BEDT - TTF)2Cu(SCN)2. Solid State Communications, 65(12), 1531-1534. doi:10.1016/0038-1098(88)90645-X.


Cite as: https://hdl.handle.net/21.11116/0000-000A-5B0C-4
Abstract
We confirm the observation of superconductivity at ambient pressure above 10 K in the organic metal (BEDT-TTF)2Cu(SCN)2 as reported recently by Urayama et al [12]. In addition we have measured ESR, ac-susceptibility and thermopower in crystals of (BEDT-TTF)2Cu(SCN)2 and have shown that in contrast to other organic superconductors here a relatively sharp superconducting transition even in the ac-susceptibility can be observed which saturates already around 8 K. The thermopower measurements indicate a clear metal-metal phase transition at 100 K and a possible second phase transition at around 50 K, while from the temperature dependence of the resistivity and susceptibility (ESR) these phase transitions cannot be observed.