Aging in a topological spin glass
作者： A. S. Wills , V. Dupuis , E. Vincent , J. Hammann , R. Calemczuk
DOI: 10.1103/PHYSREVB.62.R9264
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摘要: Using a combination of static and time dependent magnetic susceptibility measurements we have examined the nonconventional spin glass phase 2-dimensional kagome antiferromagnet (H$_3$O)Fe$_3$(SO$_4$)$_2$ (OH)$_6.$ In contrast with site-disordered glasses, {\it ac} results show critical behaviour at finite temperatures. This transition agrees well predicted anisotropy-driven topological transition. Aging effects are found as in but dependence on temperature changes is remarkably weak. These glassy dynamics appear to be governed by topology this highly frustrated system.
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