Abstract
Neutron spectroscopy on the classical triangular-lattice frustrated antiferromagnet h-YMnO3 reveals diffuse, gapless magnetic excitations present both far below and above the ordering temperature. The correlation length of the excitations increases as the temperature approaches zero, bearing a strong resemblance to critical scattering. We model the dynamics in the ordered and correlated disordered phase as critical spin correlations in a two-dimensional magnetic state. We propose that our findings may provide a general framework to understand features often attributed to classical spin liquids.
Originalsprog | Engelsk |
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Artikelnummer | 107203 |
Tidsskrift | Physical Review Letters |
Vol/bind | 126 |
Udgave nummer | 10 |
Antal sider | 6 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 11 mar. 2021 |