We propose that electron doped nontransition metal phthalocyanines such as ZnPc and MgPc, similar to those very recently reported, should constitute novel strongly correlated metals. Because of 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.
|Titolo:||Strong correlations in electron doped phthalocyanine conductors near half filling|
|Autori:||Tosatti E; Fabrizio M; Tobik J; Santoro GE|
|Rivista:||PHYSICAL REVIEW LETTERS|
|Data di pubblicazione:||2004|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.93.117002|
|Appare nelle tipologie:||1.1 Journal article|