Strong Correlations in Electron Doped Phthalocyanine Conductors Near Half Filling
arXiv:cond-mat/0406639 · doi:10.1103/PhysRevLett.93.117002
Abstract
We propose that electron doped nontransition metal-phthalocyanines (MPc) like ZnPc and MgPc, similar to those very recently reported, should constitute novel strongly correlated metals. Due to orbital degeneracy, Jahn-Teller coupling and Hund's rule exchange, and with a large on-site Coulomb repulsion, these molecular conductors should display, particularly near half filling at two electrons/molecule, very unconventional properties, including Mott insulators, strongly correlated superconductivity, and other intriguing phases.
4 pages, 1 figure, submited to PRL