Regensburg 2022 – scientific programme
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MA: Fachverband Magnetismus
MA 35: Poster 2
MA 35.13: Poster
Thursday, September 8, 2022, 16:00–18:00, P4
Aharonov-Casher effect in spin-wave refraction — •Andrii Savchenko1,2, Vladimir Krivoruchko2, and Stefan Blügel1 — 1Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich, D-52425 Jülich, Germany — 2Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine, 03028 Kyiv, Ukraine
It has been shown that in a homogeneous magnetic film there is a possibility of electric field control on the reflection and refraction of spin waves at the interface formed by regions under the effect of different electric fields. Under these conditions, the critical angles for Snell's law, the positive or negative refraction of the spin waves, and their non-reciprocity with respect to the incident angle are determined by the electric field. This is possible due to the electrically induced Aharonov-Casher phase shift of the spin-wave phase, that is equivalent to adding a Dzyaloshinskii-Moriya-like interaction between the spins of neighboring ions.