Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates

Details Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates

1997-03-14

arxiv.org/abs/cond-mat/9703155v1

Europhys. Lett. 38, 147 (1997)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, latex, 2 figures, to appear in Europhys. Lett

Scientific paper

10.1209/epl/i1997-00216-4

We consider the slave-fermion Schwinger-boson decomposition of an effective model obtained through a systematic low-energy reduction of the three-band Hubbard Hamiltonian. The model includes a three-site term t'' similar to that obtained in the large-U limit of the Hubbard model but of opposite sign for realistic or large O-O hopping. For parameters close to the most realistic ones for the cuprates, the mean-field solution exhibits d+s superconductivity (predominantly d_{x^2-y^2}) with a dependence on doping x very similar to the experimentally observed. We also obtained incommensurate peaks at wave vectors near $\pi (1,1 +(-) 2x)$ in the spin structure factor, which also agree with experiment.

Affiliated with

Also associated with

No associations

Rating

Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates 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 Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconductivity and incommensurate spin fluctuations in a generalized t-J model for the cuprates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-497006