Ultrafast magnetic vortex core switching driven by topological inverse Faraday effectReportar como inadecuado



 Ultrafast magnetic vortex core switching driven by topological inverse Faraday effect


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We present a theoretical discovery of an unconventional mechanism of inverse Faraday effect IFE which acts selectively on topological magnetic structures. The effect, topological inverse Faraday effect TIFE, is induced by spin Berrys phase of the magnetic structure when a circularly polarized light is applied. Thus a spin-orbit interaction is not necessary unlike in the conventional IFE. We demonstrate by numerical simulation that TIFE realizes ultrafast switching of a magnetic vortex within a switching time of 150 ps without magnetic field.



Autor: Katsuhisa Taguchi; Jun-ichiro Ohe; Gen Tatara

Fuente: https://archive.org/







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