Asymptotic dynamics of a frustrated model with spherical constraint

作者：Mendoza Coto Alejandro; Diaz Mendez Rogelio^*

来源：Journal of Magnetism and Magnetic Materials, 2013, 345: 111-117.

DOI：10.1016/j.jmmm.2013.06.019

• Spins system
• Spherical constraint
• Langevin dynamics

We solve the Langevin dynamics of a continuum model with a spherical constraint, considering a ferromagnetic exchange and a long-range antiferromagnetic interaction. Analytical results within the Hartree approximation show an equivalence in the form of spatial and auto-correlation functions in the long time regime between this model and the recently studied Ginzburg-Landau frustrated model. The low-temperature behavior is discussed in the context of glassy dynamics. The emergence of interesting features regarding the establishment of the saturated phase is also analyzed in the view of recent literature.

• 出版日期2013-11