%0 Journal Article %T Mott transition, antiferromagnetism, and unconventional superconductivity in layered organic superconductors %+ Laboratoire de Physique des Solides (LPS) %+ CRPEMA, Département de Physique, Sherbrooke %+ Department of Physics and Astronomy [UCLA, Los Angeles] %+ Institut des Matériaux Jean Rouxel (IMN) %A Lefebvre, S. %A Wzietek, P. %A Brown, S. %A Bourbonnais, C. %A Jerome, D. %A Meziere, C. %< avec comité de lecture %@ 0921-4526 %J Physica B: Condensed Matter %I Elsevier %V 312-313 %P 578-583 %8 2002-03 %D 2002 %R 10.1016/S0921-4526(01)01552-6 %K Layered superconductivity %K Phase Diagram %K Mott transition %Z Physics [physics]/Condensed Matter [cond-mat] %Z Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] %Z Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con] %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles %X The pressure vs temperature phase diagram of the layered organic superconducting family κ-(BEDT-TTF)2X is accurately determined by investigating the NMR and AC susceptibility properties of the anion substituted compound X=Cu[N(CN)2]Cl under helium gas pressure. A first order boundary between antiferromagnetism and superconductivity is established which is found to evolve into a first order metal–insulator transition line in the paramagnetic domain. This latter transition line is in turn ending in a critical point above which a mere crossover is retrieved. The whole phase diagram features a point-like region at which metallic, insulating, antiferromagnetic and unconventional superconducting phases all meet. %G English %L hal-02545450 %U https://univ-angers.hal.science/hal-02545450 %~ UNIV-NANTES %~ CNRS %~ UNIV-ANGERS %~ UNIV-PSUD %~ IMN %~ INC-CNRS %~ UNIV-PARIS-SACLAY %~ UNIV-PSUD-SACLAY %~ GS-PHYSIQUE %~ LPSO %~ NANTES-UNIVERSITE %~ UNIV-NANTES-AV2022 %~ TEST2-HALCNRS