corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 101 » Issue 2
< Previous Article | Next Article >

Phys. Rev. Lett. 101, 026405 (2008) [4 pages]

Dzyaloshinsky-Moriya Anisotropy in the Spin-1/2 Kagome Compound ZnCu3(OH)6Cl2

Download: PDF (390 kB) Buy this article Export: BibTeX or EndNote (RIS)

A. Zorko1,2, S. Nellutla3, J. van Tol3, L. C. Brunel3, F. Bert1, F. Duc4, J.-C. Trombe4, M. A. de Vries5, A. Harrison5, and P. Mendels1
1Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, 91405 Orsay, France
2Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
3National High Magnetic Field Laboratory, FSU, Tallahassee, Florida, USA
4Centre d’Élaboration des Matériaux et d’Études Structurales, CNRS UPR 8011, 31055 Toulouse, France
5School of Chemistry and SCEC, The University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom

Received 18 April 2008; published 11 July 2008

We report the determination of the Dzyaloshinsky-Moriya interaction, the dominant magnetic anisotropy term in the kagome spin-1/2 compound ZnCu3(OH)6Cl2. Based on the analysis of the high-temperature electron spin resonance (ESR) spectra, we find its main component |Dz|=15(1)  K to be perpendicular to the kagome planes. Through the temperature dependent ESR linewidth, we observe a building up of nearest-neighbor spin-spin correlations below ∼150  K.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.026405
DOI:
10.1103/PhysRevLett.101.026405
PACS:
71.27.+a, 75.30.Gw, 76.30.−v
 
< Previous Article | Next Article >