Manipulation of the Dzyaloshinskii-Moriya Interaction in Co/Pt Multilayers with Strain.
| Autor: | Gusev NS; Institute for Physics of Microstructures RAS, Nizhny Novgorod 603950, Russia., Sadovnikov AV; Saratov State University, Saratov 410012, Russia.; Kotelnikov Institute of Radioengineering and Electronics RAS, Moscow, 125009, Russia., Nikitov SA; Saratov State University, Saratov 410012, Russia.; Kotelnikov Institute of Radioengineering and Electronics RAS, Moscow, 125009, Russia., Sapozhnikov MV; Institute for Physics of Microstructures RAS, Nizhny Novgorod 603950, Russia.; Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia., Udalov OG; Institute for Physics of Microstructures RAS, Nizhny Novgorod 603950, Russia.; Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia.; Department of Physics and Astronomy, California State University Northridge, Northridge, California 91330, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2020 Apr 17; Vol. 124 (15), pp. 157202. |
| DOI: | 10.1103/PhysRevLett.124.157202 |
| Abstrakt: | Interfacial Dzyaloshinskii-Moriya interaction (DMI) is experimentally investigated in Pt/Co/Pt multilayer films under strain. A strong variation (from 0.1 to 0.8 mJ/m^{2}) of the DMI constant is demonstrated at ±0.1% in-plane uniaxial deformation of the films. The anisotropic strain induces strong DMI anisotropy. The DMI constant perpendicular to the strain direction changes sign, while the constant along the strain direction does not. Estimates show that the DMI can be controlled with an electric field in hybrid ferroelectric-ferromagnetic systems. So, the observed effect opens the way to control the DMI and eventually skyrmions with a voltage via a strain-mediated magnetoelectric coupling. |
| Databáze: | MEDLINE |
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