Field-Free Magnetization Switching by an Acoustic Wave
| Autor: | Catherine Gourdon, J.-Y. Duquesne, Aristide Lemaître, Ibrahima Camara, Laura Thevenard |
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| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Photons, Magnons et Technologies Quantiques (INSP-E11), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Acoustique pour les nanosciences (INSP-E3), Centre de Nanosciences et Nanotechnologies (C2N (UMR_9001)), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Field (physics)
Thin films General Physics and Astronomy 02 engineering and technology 01 natural sciences Surface acoustic wave Magnetoacoustic effect Magnetization Spin wave 0103 physical sciences Devices [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics Physics Condensed matter physics Spintronics Magnetization switching Magnetization reversal Magnetostriction Acoustic wave Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Millimeter 0210 nano-technology Ferromagnets Spin waves |
| Zdroj: | Physical Review Applied Physical Review Applied, American Physical Society, 2019, 11 (1), ⟨10.1103/PhysRevApplied.11.014045⟩ |
| ISSN: | 2331-7019 |
| Popis: | International audience; Surface acoustic waves (SAW) propagating on magneto-strictive ferromagnets can induce mag-netization reversal: their weak damping and mature technology make them ideal for remote wave control of magnetic bits. Experimental demonstrations of this spectacular coupling have so far required the simultaneous application of a static magnetic field. We show here SAW-driven all-acoustical switching (AAS) over millimetric distances. It relies on the triggering of magnetization precession of a uniaxial in-plane magnetized film by acoustic ferromagnetic resonance at zero field. Moreover, the absence of biasing field enables toggling between the two equilibrium magnetic states for over twenty consecutive acoustic pulses. This proof-of-concept opens an alternative path to magnetic bit manipulation. |
| Databáze: | OpenAIRE |
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