Phonon-Magnon Interaction in Low Dimensional Quantum Magnets Observed by Dynamic Heat Transport Measurements

Matteo Montagnese*, Marian Otter, Xenophon Zotos, Dmitry A. Fishman, Nikolai Hlubek, Oleg Mityashkin, Christian Hess, Romuald Saint-Martin, Surjeet Singh, Alexandre Revcolevschi, Paul H. M. van Loosdrecht

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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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 mu s for the cuprate spin-ladder system Ca9La5Cu24O41. The present work provides a general method to directly address the spin-phonon interaction by means of dynamical transport experiments. DOI:10.1103/PhysRevLett.110.147206

Original languageEnglish
Article number147206
Pages (from-to)147206-1-147206-5
Number of pages5
JournalPhysical Review Letters
Volume110
Issue number14
DOIs
Publication statusPublished - 4-Apr-2013

Keywords

  • THERMAL-CONDUCTIVITY
  • CRYSTALS
  • CUGEO3
  • SR14CU24O41
  • SR2CUO3
  • SPINONS

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