Spin Conductance in one-dimensional Spin-Phonon systems
arXiv:cond-mat/0505253 · doi:10.1103/PhysRevB.72.214415
Abstract
We present results for the spin conductance of the one dimensional spin-1/2 Heisenberg and XY model coupled to phonons. We apply an approach based on the Stochastic Series Expansion (Quantum Monte Carlo) method to evaluate the conductance for a variety of phonon dispersions and values of spin-phonon coupling. From our numerical simulations and analytical arguments, we derive several scaling laws for the conductance.
7 pages, 9 figures