Session Q34: Focus Session: Frustrated and Low-D Magnetism -- Spins, Orbitals, and Phonons
11:15 AM–2:15 PM, Wednesday, March 17, 2010
Room: E144
Sponsoring Units:
DMP GMAG
Chair: Joachim Deisenhofer, Augsburg University
Abstract ID: BAPS.2010.MAR.Q34.13
Abstract: Q34.00013 : Phonon drag in thermal conductivity of antiferromagnets
2:03 PM–2:15 PM
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Abstract
Authors:
Suhas Gangadharaiah
(University of California, Irvine)
Alexander Chernyshev
(University of California, Irvine)
We use Boltzmann equation approach to the thermal transport in low-dimensional antiferromagnets with spin-lattice coupling. We consider the limit of fast spin excitations, relevant to many compounds with $J>>\Theta_D$, where $\Theta_D$ is the Debye energy. We discuss the ``off-diagonal'' contribution to the heat current due to the drag of spin excitations on phonons. We calculate this effect for the one-dimensional spin chain materials.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.Q34.13