Reentrant Meissner effect in the organic conductor κ-(BEDT-TTF ) 2 Cu[N(CN ) 2 ]Cl under pressure
作者： H. Posselt , H. Müller , K. Andres , G. Saito
DOI: 10.1103/PHYSREVB.49.15849
关键词: Ambient pressure 、 Metal 、 Magnetic moment 、 Materials science 、 Electrical resistivity and conductivity 、 Condensed matter physics 、 Meissner effect 、 Superconductivity 、 Hydrostatic pressure 、 Bar (unit)
摘要: Metallic \ensuremath{\kappa}-(BEDT-TTF${)}_{2}$Cu[N(${\mathrm{CN}}_{2}$]Cl turns semiconducting and insulating at low temperatures ambient pressure enters a ferrimagneticlike state below 20 K. Under hydrostatic (p\ensuremath{\simeq}300 bar), previous investigations have shown that the metallic can be stabilized reentrant superconducting behavior observed (by means of resistivity measurements) in rather wide range. By dc susceptibility measurements, we show volume superconductivity actually exists only narrow critical In contrast to previously found superconductors, this material does not contain rare-earth magnetic moments.
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