Spin correlations and Dzyaloshinskii-Moriya interaction in Cs2CuCl4

M. A. Fayzullin, R. M. Eremina, M. V. Eremin, A. Dittl, N. van Well, F. Ritter, W. Assmus, J. Deisenhofer, H.-A. Krug von Nidda, and A. Loidl
Phys. Rev. B 88, 174421 – Published 25 November 2013

Abstract

We report on electron spin resonance (ESR) studies of the spin relaxation in Cs2CuCl4. The main source of the ESR linewidth at temperatures T150 K is attributed to the uniform Dzyaloshinskii-Moriya interaction. The vector components of the Dzyaloshinskii-Moriya interaction are determined from the angular dependence of the ESR spectra using a high-temperature approximation. Both the angular and temperature dependencies of the ESR linewidth have been analyzed using a self-consistent quantum-mechanical approach. In addition, analytical expressions based on a quasiclassical picture for spin fluctuations are derived, which show good agreement with the quantum-approach for temperatures T2J/kB15 K. A small modulation of the ESR linewidth observed in the ac plane is attributed to the anisotropic Zeeman interaction, which reflects the two magnetically nonequivalent Cu positions.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 August 2012

DOI:https://doi.org/10.1103/PhysRevB.88.174421

©2013 American Physical Society

Authors & Affiliations

M. A. Fayzullin1, R. M. Eremina1,2, M. V. Eremin1, A. Dittl3, N. van Well4, F. Ritter4, W. Assmus4, J. Deisenhofer3, H.-A. Krug von Nidda3, and A. Loidl3

  • 1Institute for Physics, Kazan (Volga region) Federal University, 420008, Kazan, Russia
  • 2E. K. Zavoisky Physical-Technical Institute RAS, 420029 Kazan, Russia
  • 3Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, Augsburg University, D-86135 Augsburg, Germany
  • 4Physikalisches Institut, Goethe-Universität Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 88, Iss. 17 — 1 November 2013

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×