title: Phonon-magnon interaction in low dimensional quantum magnets observed by dynamic heat transport measurements.
abstract: Thirty-five years ago, Sanders and Walton [Phys. Rev. B 15, 1489 (1977)] proposed a method to measure the phonon-magnon interaction in antiferromagnets through thermal transport which so far has not been verified experimentally. We show that a dynamical variant of this approach allows direct extraction of the phonon-magnon equilibration time, yielding 400 μs for the cuprate spin-ladder system Ca(9)La(5)Cu(24)O(41). The present work provides a general method to directly address the spin-phonon interaction by means of dynamical transport experiments.
authors.affiliation: Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG, The Netherlands.
authors.forename: Matteo
authors.initials: M
authors.lastname: Montagnese
authors.affiliation: Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG, The Netherlands.
authors.forename: Marian
authors.initials: M
authors.lastname: Otter
authors.affiliation: Department of Physics, University of Crete and Foundation for Research and Technology-Hellas, 71003 Heraklion, Greece.
authors.forename: Xenophon
authors.initials: X
authors.lastname: Zotos
authors.affiliation: Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG, The Netherlands.
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Fishman
authors.affiliation: IFW-Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany.
authors.forename: Nikolai
authors.initials: N
authors.lastname: Hlubek
authors.affiliation: IFW-Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany.
authors.forename: Oleg
authors.initials: O
authors.lastname: Mityashkin
authors.affiliation: IFW-Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Hess
authors.affiliation: Laboratoire de Physico-Chimie de L'Etat Solide, ICMMO, UMR8182, Université Paris-Sud, 91405 Orsay CEDEX, France.
authors.forename: Romuald
authors.initials: R
authors.lastname: Saint-Martin
authors.affiliation: Laboratoire de Physico-Chimie de L'Etat Solide, ICMMO, UMR8182, Université Paris-Sud, 91405 Orsay CEDEX, France.
authors.forename: Surjeet
authors.initials: S
authors.lastname: Singh
authors.affiliation: Laboratoire de Physico-Chimie de L'Etat Solide, ICMMO, UMR8182, Université Paris-Sud, 91405 Orsay CEDEX, France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Revcolevschi
authors.affiliation: Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG, The Netherlands.
authors.forename: Paul H M
authors.initials: PH
authors.lastname: van Loosdrecht