Table of Contents
Crystals, Volume 8, Issue 5 (May 2018)
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Cover Story (view full-size image) k-(BEDT-TTF)2X (X= Cu[N(CN)2]Cl, Cu2(CN)3, and Ag2(CN)3) are known as Mott insulators driven by [...] Read more. k-(BEDT-TTF)2X (X= Cu[N(CN)2]Cl, Cu2(CN)3, and Ag2(CN)3) are known as Mott insulators driven by electron–electron interaction near the metal-to-insulator boundary. Magnetic order occurs in k-(BEDT–TTF)2Cu[N(CN)2]Cl, but is absent in the salts with Cu2(CN)3 or Ag2(CN)3 anions which promote a quantum spin liquid. Random disorder affects magnetism while signatures of ferroelectricity persist. This review calls for further research to elucidate roles of correlations, randomness and charge-spin coupling to ultimately tune the ground state of these organic complex solids. View this paper