collaborators

1 paper

cond-mat1996

Ferromagnetism in multi--band Hubbard models: From weak to strong Coulomb repulsion

Karlo Penc, Hiroyuki Shiba, Frédéric Mila +1

We propose a new mechanism which can lead to ferromagnetism in Hubbard models containing triangles with different on-site energies. It is based on an effective Hamiltonian that we…