Two-dimensional Heisenberg model with spin s=1/2 and antiferromagnetic exchange treated as a spin liquidTheoretical or Mathematical/ antiferromagnetismexchange interactions (electron)Green's function methodsHeisenberg model/ 2D Heisenberg s=1/2 spin liquid...
Pelissetto, Two-dimensional Heisenberg model with nonlinear interactions: 1/N corrections, Nucl. Phys. B 707 (2005) 458 [cond-mat/0409536]; Large-NF ... Sergio,Caracciolo,and,... - 《Nuclear Physics B》 被引量: 20发表: 2005年 Two-dimensional Heisenberg model with nonlinear interactions: ...
The purpose of this paper is to investigate the ground-state properties oftwo-dimensional Heisenberg models on a square lattice with a givendimerization. Our aim is threefold: First, we want to investigate thedimensional transition from two to one dimension for three models consisting ofweakly ...
The B1g Raman spectrum of the two-dimensional S=1/2 Heisenberg model is discussed within Loudon-Fleury theory at both zero and finite temperature. The exact T=0 spectrum for lattices with up to 6*6 sites is computed using Lanczos exact diagonalization. A quantum Monte Carlo (QMC) method ...
The ground-state parameters of the two-dimensional S=1/2 antiferromagnetic Heisenberg model are calculated using the stochastic series expansion quantum Monte Carlo method for L×L lattices with L up to 16. The finite-size results for the energy E, the sublattice magnetization M, the long-wavel...
The influence of damping on the phase diagram of two-dimensional S = 1 / 2 frustrated Heisenberg model is investigated. The damping is introduced semiphenomenologically in the frames of self-consistent spherically-symmetric approach for spin Green's functions. The comparison of the results with ...
Spin-(1/2) Heisenberg model on the anisotropic triangular lattice: From magnetism to a one-dimensional spin liquid We investigate the anisotropic triangular lattice that interpolates from decoupled one-dimensional chains to the isotropic triangular lattice and has been ... D Heidarian,S Sorella,F ...
thequartetstateoftwo-dimensionalheisenbergmodelwithspin12 系统标签: quartetheisenbergspinstatelatticesquare a r X i v : c o n d - m a t / 9 3 0 8 0 3 0 v 1 2 3 A u g 1 9 9 3 RUSSIANACADEMYOFSCIENCES SIBERIANBRANCH Thequartetstateofthetwo-dimensionalHeisenberg modelwiththespin- 1...
The kinetic model of electrochemical nucleation of micro- and nanoparticles is studied. The functional dependence of probability of the energy of the particle on the relative radius found earlier is used in nucleation in the statistical Heisenberg model. On the basis of the proposed theory, a simpl...
An SO(3) gauge theory of the spin-1/2 Heisenberg antiferromagnet (HA) on a two-dimensional square lattice is developed. The effective action ΓSC of the system is described by an anisotropic SO(3) σ model supplemented by Berry... A Holz - 《Journal of Physics A Mathematical & General...