Modification of Dzyaloshinskii-Moriya-Interaction-Stabilized Domain Wall Chirality by Driving Currents
| Autor: | Frank Freimuth, Eduardo Martínez, S. Senz, R. Lo Conte, T. Schulz, Mathias Kläui, Yuriy Mokrousov, Gurucharan V. Karnad, Gianluca Gubbiotti, Berthold Ocker |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Current (mathematics)
Current-induced General Physics and Astronomy FOS: Physical sciences Spin currents 02 engineering and technology 01 natural sciences Measure (mathematics) Spin current 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ddc:550 22 Física 010306 general physics Domain Wall Chirality Spin-½ Physics Condensed matter physics física Condensed Matter - Mesoscale and Nanoscale Physics Theoretical predictions 021001 nanoscience & nanotechnology Magnetic field Domain wall (magnetism) Dzyaloshinskii-Moriya-interaction (DMI) 0210 nano-technology Chirality (chemistry) Field-induced domain Dzyaloshinskii-Moriya-interaction |
| Zdroj: | Physical review letters 121(14), 147203 (2018). doi:10.1103/PhysRevLett.121.147203 Physical review letters 121 (2018): 147203. doi:10.1103/PhysRevLett.121.147203 info:cnr-pdr/source/autori:Karnad G.V., Freimuth F., Martinez E., Lo Conte R., Gubbiotti G., Schulz T., Senz S., Ocker B., Mokrousov Y., Kläui M./titolo:Modification of Dzyaloshinskii-Moriya-Interaction-Stabilized Domain Wall Chirality by Driving Currents/doi:10.1103%2FPhysRevLett.121.147203/rivista:Physical review letters (Print)/anno:2018/pagina_da:147203/pagina_a:/intervallo_pagine:147203/volume:121 GREDOS: Repositorio Institucional de la Universidad de Salamanca Universidad de Salamanca (USAL) Physical Review Letters GREDOS. Repositorio Institucional de la Universidad de Salamanca instname |
| DOI: | 10.1103/PhysRevLett.121.147203 |
| Popis: | We measure and analyze the chirality of Dzyaloshinskii-Moriya-interaction (DMI) stabilized spin textures in multilayers of $\mathrm{Ta}|{\mathrm{Co}}_{20}{\mathrm{F}}_{60}{\mathrm{B}}_{20}|\mathrm{MgO}$. The effective DMI is measured experimentally using domain wall motion measurements, both in the presence (using spin-orbit torques) and absence of driving currents (using magnetic fields). We observe that the current-induced domain wall motion yields a change in effective DMI magnitude and opposite domain wall chirality when compared to field-induced domain wall motion (without current). We explore this effect, which we refer to as current-induced DMI, by providing possible explanations for its emergence, and explore the possibility of its manifestation in the framework of recent theoretical predictions of DMI modifications due to spin currents. |
| Databáze: | OpenAIRE |
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