Spin Dynamics in Pyrochlore Heisenberg Antiferromagnets - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




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Abstract: We study the low temperature dynamics of the classical Heisenbergantiferromagnet with nearest neighbour interactions on the pyrochlore lattice.We present extensive results for the wavevector and frequency dependence of thedynamical structure factor, obtained from simulations of the precessionaldynamics. We also construct a solvable stochastic model for dynamics withconserved magnetisation, which accurately reproduces most features of theprecessional results. Spin correlations relax at a rate independent ofwavevector and proportional to temperature.



Autor: P. H. Conlon, J. T. Chalker

Fuente: https://arxiv.org/







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