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
References in corpus (19)
- Quantum Monte Carlo with Directed Loops
- Stochastic series expansion method with operator-loop update
- Landauer Conductance of Luttinger Liquids with Leads
- Transport in an inhomogeneous interacting one--dimensional system
- Magnetization transport and quantized spin conductance
- Magnon Heat Transport in (Sr,La)_14Cu_24O_41
- Heat transport by lattice and spin excitations in the spin chain compounds SrCuO_2 and Sr_2CuO_3
- Zero-frequency transport properties of one dimensional spin-1/2 systems
- Phase diagram of a Heisenberg spin-Peierls model with quantum phonons
- Low-temperature transport in Heisenberg chains
- Quantum Monte Carlo in the Interaction Representation --- Application to a Spin-Peierls Model
- Nonadiabatic Approach to Spin-Peierls Transitions via Flow Equations
- Density Matrix Renormalization Group Applied to the Ground State of the XY-Spin-Peierls System
- Spin-Peierls transition in the Heisenberg chain with finite-frequency phonons
- Conductivity of quantum-spin chains: A Quantum Monte Carlo approach
- Thermodynamical Properties of a Spin 1/2 Heisenberg Chain Coupled to Phonons
- Spin-Phonon Chains with Bond Coupling
- Quantum Monte Carlo simulation for the conductance of one-dimensional quantum spin systems
- Analytic approach to the one-dimensional spin-Peierls system in the entire frequency range