Electronic states in the valence-fluctuating organic conductors (DCNQI)2Cu (DCNQI=N,N'-dicyanoquinonediimine) studied by ultraviolet photoemission spectroscopy

Electronic states in the valence-fluctuating organic conductors (DCNQI)2Cu (DCNQI=N,N'-dicyanoquinonediimine) studied by ultraviolet photoemission spectroscopy