Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes

Details Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes

1996-08-23

arxiv.org/abs/cond-mat/9608107v1

Phys. Rev. B 54, R11026 (1996)

Physics

Condensed Matter

4 pages, revtex, 1 eps figure included, to be published in Phys.Rev.B Rapid Comm

Scientific paper

10.1103/PhysRevB.54.R11026

The Mott-Hubbard transition is studied for a Hubbard model with orbital degeneracy N, using a diffusion Monte-Carlo method. Based on general arguments, we conjecture that the Mott-Hubbard transition takes place for U/W \propto \sqrt{N}, where U is the Coulomb interaction and W is the band width. This is supported by exact diagonalization and Monte-Carlo calculations. Realistic parameters for the doped fullerenes lead to the conclusion that stoichiometric A_3 C_60 (A=K, Rb) are near the Mott-Hubbard transition, in a correlated metallic state.

Affiliated with

Also associated with

No associations

Rating

Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mott Transition in Degenerate Hubbard Models: Application to Doped Fullerenes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-598327