Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2000-09-28
Physics
Condensed Matter
Strongly Correlated Electrons
Revtex, 8 pages with 15 figures
Scientific paper
10.1103/PhysRevB.63.115112
Using the Constrained Path Monte Carlo (CPMC) method, we simulated the two-dimensional, three-band Hubbard model to study pairing, charge, and spin correlations as a function of electron and hole doping and the Coulomb repulsion $V_{pd}$ between charges on neighboring Cu and O lattice sites. As a function of distance, both the $d_{x^2 - y^2}$-wave and extended s-wave pairing correlations decayed quickly. In the charge-transfer regime, increasing $V_{pd}$ decreased the long-range part of the correlation functions in both channels, while in the mixed-valent regime, it increased the long-range part of the s-wave behavior but decreased that of the d-wave behavior. Still the d-wave behavior dominated. At a given doping, increasing $V_{pd}$ increased the spin-spin correlations in the charge-transfer regime but decreased them in the mixed-valent regime. Also increasing $V_{pd}$ suppressed the charge-charge correlations between neighboring Cu and O sites. Electron and hole doping away from half-filling was accompanied by a rapid suppression of anti-ferromagnetic correlations.
Gubernatis James E.
Huang Z. B.
Lin Hai-Qing
No associations
LandOfFree
Pairing, Charge, and Spin Correlations in the Three-Band 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 Pairing, Charge, and Spin Correlations in the Three-Band Hubbard Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pairing, Charge, and Spin Correlations in the Three-Band Hubbard Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-651190