Electronic structure of θ-type BETS salts
1999
Abstract A new series of θ-type BETS salts have been prepared and the crystal structure analyses and the electrical resistivity measurements have been carried out. θ-BETS 2 MM′(SCN) 4 [MM′=RbCo, RbZn, CsCo, CsZn]are isostructural to ET analogues. The metal insulator transition occurs at 25 Kfor θ-RbM′, whereas the metallic behaviors down to 2K have been observed for θ-CsM′ and θBETS 2 Ag(CN) 2 . The phase diagram of θ-type BETS salts shows that the electronic state is scaled by electronic correlation parameter (U/W), and that the metallic state extends wider, compared with θ-ET salts.
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