Superconductivity at 7.5 K and ambient pressure in polycrystalline pressed samples of βp-(BEDT-TTF)2I3

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  • We gratefully acknowledge financial support of this work by the Deutsche Forschungsgemeinschaft

Abstract

Polycrystalline pressed samples of β-(BEDT-TTF)2I3 exhibit bulk superconductivity, zero resistivity being observed at 3.2 K (see figure) a transition temperature which is surprisingly higher than that observed for single crystals of the same compound.

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