Autoresonant control of the magnetization switching in single-domain nanoparticles
The ability to control the magnetization switching in nanoscale devices is a crucial step for the development of fast and reliable techniques to store and process information. Here we show that the switching dynamics can be controlled efficiently using a microwave field with slowly varying frequency...
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| creator | Klughertz, Guillaume Paul-Antoine Hervieux Manfredi, Giovanni |
| description | The ability to control the magnetization switching in nanoscale devices is a crucial step for the development of fast and reliable techniques to store and process information. Here we show that the switching dynamics can be controlled efficiently using a microwave field with slowly varying frequency (autoresonance). This technique allowed us to reduce the applied field by more than \(30%\) compared to competing approaches, with no need to fine-tune the field parameters. For a linear chain of nanoparticles the effect is even more dramatic, as the dipolar interactions tend to cancel out the effect of the temperature. Simultaneous switching of all the magnetic moments can thus be efficiently triggered on a nanosecond timescale. |
| doi_str_mv | 10.48550/arxiv.1410.2003 |
| format | Article |
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| subjects | Magnetic moments Magnetic switching Magnetism Magnetization Nanoparticles Nanotechnology devices Physics - Mesoscale and Nanoscale Physics Stability |
| title | Autoresonant control of the magnetization switching in single-domain nanoparticles |
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