Abstract
In the dynamics of random magnetic systems, the dimensionality of the magnetic lattice plays a crucial role. Two-dimensional (d= 2) Ising spin glasses do not order until T=0 K, and accordingly the dynamics at long length scales is anticipated to be dominated by thermal activation over energy barriers.1–3 Upon approaching the transition, this activated dynamical behavior involves a much faster divergence of relaxation times than ordinary critical slowing down at a conventional phase transition. The present study provides an experimental verification of these predictions in an actual d = 2 system.
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Arts, A.F.M., Dekker, C., de Wijn, H.W. (1990). Spin-Glass Dynamics in the Two-Dimensional Ising System Rb2Cu1-xCoxF4 . In: Campbell, I.A., Giovannella, C. (eds) Relaxation in Complex Systems and Related Topics. NATO ASI Series, vol 222. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2136-9_3
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DOI: https://doi.org/10.1007/978-1-4899-2136-9_3
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