Potential signature of a kosterlitz-thouless transition in [formula presented]

M. Heinrich, H. A. Krug von Nidda, A. Loidl, N. Rogado, Robert Joseph Cava

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

ESR measurements are reported for the quasi-two-dimensional honeycomb antiferromagnet [Formula presented]. Planar anisotropic properties are confirmed by angular dependent investigations of resonance field and linewidth. The divergence of the temperature-dependent linewidth on approaching [Formula presented] from above is described in terms of the Kosterlitz-Thouless transition, the critical behavior close to long-range magnetic order, and the 2D Heisenberg antiferromagnet. We provide arguments that the Kosterlitz-Thouless scenario is compatible with the observed critical exponent and suggest [Formula presented] is a weakly anisotropic 2D Heisenberg antiferromagnet.

Original languageEnglish (US)
JournalPhysical review letters
Volume91
Issue number13
DOIs
StatePublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Potential signature of a kosterlitz-thouless transition in [formula presented]'. Together they form a unique fingerprint.

  • Cite this