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Updated: Jun 3, 2026

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Published on: July 20, 2022
Dynamic switching of the magnetization in a driven molecular nanomagnet
L Chotorlishvili1, P Schwab, J Berakdar
1Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany.
Abstract:
We study the magnetization dynamics of a single molecular nanomagnet driven by static and variable magnetic fields within a classical treatment. The underlying analysis is valid for a regime where 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 that we utilize in obtaining dynamically induced magnetization switching. A new type of magnetization switching is proposed.
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