Critical Electron-Paramagnetic-Resonance Spin Dynamics in Ni ${Cl}_{2}$

Publisher Website

18 June 1973

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 30 (25) , 1252-1255
https://doi.org/10.1103/physrevlett.30.1252

Abstract

We have studied the critical behavior of the electron-paramagnetic-resonance linewidth in the planar

XY

antiferromagnet Ni

{Cl}_{2}

; it is found that the linewidth diverges like

ξ \sim {(T - T_{N})}^{- 0.7}

rather than

ξ^{\frac{5}{2}}

predicted by the current random-phase-approximation theory.

Keywords

This publication has 10 references indexed in Scilit:

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