Numerical Experiments on Frustrated Quantum Spin Systems
Thermodynamic properties of the antiferromagnetic Heisenberg model with frustration on the square lattice are investigated using quantum simulation based on the decoupled cell Monte Carlo method. The effect of frustration is introduced through an additional next-nearest neighbor antiferromagnetic interaction J 2. With increasing J 2, certain spin ordering was observed at low temperatures.
Unable to display preview. Download preview PDF.