Theoretical study on possibility of organic metallic ferromagnetism

In order to explore the possibility of synthesizing molecular metallic ferromagnets with high Tc the magnetic phase diagram has been determined for an extended Hubbard system whose unit cell contains one molecule with two different orbitals. It is shown that in case of 14 or 34 electron filling ferromagnetic phase may be realized if the transfer between the different orbitals is much larger than that between the same orbitals.