Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model

Details Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model

1995-03-29

arxiv.org/abs/cond-mat/9503154v1

Physics

Condensed Matter

Latex manuscript (4 pages) + 4 postscript figures (upon request)

Scientific paper

10.1007/s002570050210

The low energy spin and charge excitations in the 2D Hubbard model near half filling are analyzed. The RPA spectra derived from inhomoheneous mean field textures are analyzed. Spin excitations show a commensurate peak at half filling, incommensurate peaks near half filling, and a broad background typical of a dilute Fermi liquid away from half filling. Charge excitations, near half filling, are localized near (0,0), and they occupy a small portion of the Brillouin Zone, in a way consistent with the existence of a small density of carriers, and a small Fermi surface. At higher hole densities, they fill the entire BZ, and can be understood in terms of a conventional Fermi liquid picture. The results are consistent with the observed features of the high-T$_c$ superconductors.

Affiliated with

Also associated with

No associations

Rating

Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model 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 Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Momentum dependence of the spin and charge excitations in the two dimensional Hubbard model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-175590