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cond-mat.str-el2008★ 12 cited
Spin-stiffness of anisotropic Heisenberg model on square lattice and possible mechanism for pinning of the electronic liquid crystal direction in YBCO
T. Pardini, R. R. P. Singh, A. Katanin +1
Using series expansions and spin-wave theory we calculate the spin-stiffness anisotropy in Heisenberg models on the square lattice with anisotropic couplings $J_x,J…
cond-mat.str-el2008★ 36 cited
Magnetic order in coupled spin-half and spin-one Heisenberg chains in anisotropic triangular-lattice geometry
T. Pardini, R. R. P. Singh
We study spin-half and spin-one Heisenberg models in the limit where one dimensional (1-D) linear chains, with exchange constant J1, are weakly coupled in an anisotropic triangular…