Abstract
The spin dynamics of the two-dimensional (2D) triangular lattice antiferromagnets ${\text{HCrO}}_{2}$, ${\text{LiCrO}}_{2}$, and ${\text{NaCrO}}_{2}$ is investigated by electron spin resonance. In these oxides, on approaching the N\'eel temperature ${T}_{\text{N}}$ from above, the divergence of the temperature dependent linewidth is well described in terms of a Berezinskii-Kosterlitz-Thouless scenario due to magnetic vortex-antivortex pairing. A refined analysis suggests analogies to the melting scenario of a 2D triangular lattice described by Nelson, Halperin, and Young.
Full Text
Paper version not known (
Free)
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call