Moving magnetic domain walls with sound alone
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arXiv
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| Format: | Preprint |
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2024
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| author | Rivelles, Alejandro Yanes, Rocío Torres, Luis Abuín, Manuel Grandal, Javier Sepehr, Maedeh Orero-Gámez, Guzmán Guedas, Rodrigo Fernández-García, Laura Izquierdo-López, Raúl Maicas, Marco Sanz, Maria del Mar Pedrós, Jorge Calle, Fernando Ruiz-Gómez, Sandra Khaliq, Muhammad Waqas Niño, Miguel Angel Vélez, Saül Foerster, Michael López-Díaz, Luis Prieto, Jose Luis |
| author_facet | Rivelles, Alejandro Yanes, Rocío Torres, Luis Abuín, Manuel Grandal, Javier Sepehr, Maedeh Orero-Gámez, Guzmán Guedas, Rodrigo Fernández-García, Laura Izquierdo-López, Raúl Maicas, Marco Sanz, Maria del Mar Pedrós, Jorge Calle, Fernando Ruiz-Gómez, Sandra Khaliq, Muhammad Waqas Niño, Miguel Angel Vélez, Saül Foerster, Michael López-Díaz, Luis Prieto, Jose Luis |
| contents | Surface Acoustic Waves (SAW) have been used in spintronic applications to decrease the magnetic field or the electric current required to act on the magnetization. A common belief is that a SAW alone cannot achieve a directed magnetic switching in a device without an assisting magnetic field or electric current. In this work, we demonstrate magnetic domain wall motion driven solely by an acoustic wave. Using XMCD-PEEM, we show extensive evidence of SAW-induced and field-free magnetic domain wall motion (DW) in the direction of the wave propagation. Our micromagnetic simulations reveal a mechanism that allows the SAW to transfer linear momentum to the DW. Experimentally, the largest DW average velocity measured was ~12 m/s, although our simulations predict that velocities in the range of 100 m/s could be attained. This new mechanism opens the door to designing innovative spintronic devices where the magnetization can be controlled exclusively by an acoustic wave. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_12778 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Moving magnetic domain walls with sound alone Rivelles, Alejandro Yanes, Rocío Torres, Luis Abuín, Manuel Grandal, Javier Sepehr, Maedeh Orero-Gámez, Guzmán Guedas, Rodrigo Fernández-García, Laura Izquierdo-López, Raúl Maicas, Marco Sanz, Maria del Mar Pedrós, Jorge Calle, Fernando Ruiz-Gómez, Sandra Khaliq, Muhammad Waqas Niño, Miguel Angel Vélez, Saül Foerster, Michael López-Díaz, Luis Prieto, Jose Luis Mesoscale and Nanoscale Physics Applied Physics Surface Acoustic Waves (SAW) have been used in spintronic applications to decrease the magnetic field or the electric current required to act on the magnetization. A common belief is that a SAW alone cannot achieve a directed magnetic switching in a device without an assisting magnetic field or electric current. In this work, we demonstrate magnetic domain wall motion driven solely by an acoustic wave. Using XMCD-PEEM, we show extensive evidence of SAW-induced and field-free magnetic domain wall motion (DW) in the direction of the wave propagation. Our micromagnetic simulations reveal a mechanism that allows the SAW to transfer linear momentum to the DW. Experimentally, the largest DW average velocity measured was ~12 m/s, although our simulations predict that velocities in the range of 100 m/s could be attained. This new mechanism opens the door to designing innovative spintronic devices where the magnetization can be controlled exclusively by an acoustic wave. |
| title | Moving magnetic domain walls with sound alone |
| topic | Mesoscale and Nanoscale Physics Applied Physics |
| url | https://arxiv.org/abs/2406.12778 |