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cond-mat.str-el1998★ 8 cited
Mean-Field Theory for Spin Ladders Using Angular-Momentum Coupled Bases
J. Piekarewicz, J. R. Shepard
We study properties of two-leg Heisenberg spin ladders in a mean-field approximation using a variety of angular-momentum coupled bases. The mean-field theory proposed by Gopalan, R…
cond-mat.str-el1998★ 9 cited
Perturbation Theory for Spin Ladders Using Angular-Momentum Coupled Bases
J. Piekarewicz, J. R. Shepard
We compute bulk properties of Heisenberg spin-1/2 ladders using Rayleigh-Schrödinger perturbation theory in the rung and plaquette bases. We formulate a method to extract high-orde…