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arXiv · 0907.4105

Dynamic switching of magnetization in driven magnetic molecules

L. Chotorlishvili·P. Schwab·J. Berakdar
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Abstract

We study the magnetization dynamics of a molecular magnet driven by static and variable magnetic fields within a semiclassical treatment. The underling analyzes is valid in a regime, when the energy is definitely lower than the anisotropy barrier, but still a substantial number of states are excited. We find the phase space to contain a separatrix line. Solutions far from it are oscillatory whereas the separatrix solution is of a soliton type. States near the separatrix are extremely sensitive to small perturbations, a fact which we utilize for dynamically induced magnetization switching.

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L. Chotorlishvili, P. Schwab, J. Berakdar. 2009-07-23. Dynamic switching of magnetization in driven magnetic molecules. https://arxiv.org/abs/0907.4105

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