Nembach, H.
, Bauer, H.
, Shaw, J.
, Schneider, M.
and Silva, T.
(2009),
Microwave assisted magnetization reversal in single domain nanoelements, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902206
(Accessed December 9, 2024)
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Microwave assisted magnetization reversal in single domain nanoelements
Published
Author(s)
, , , Michael Schneider,
Abstract
We studied the microwave assisted magnetic reversal in 65×71 nm2 elliptical Ni80Fe20 nanomagnets with a thickness of 10 nm. Hysteresis curves were measured by magneto-optical Kerr effect for a range of microwave frequencies and amplitudes. We observe a strong reduction in the coercive field when the microwave frequency coincides with the experimentally determined ferromagnetic resonance frequency in the switching region. This process occurs despite a small microwave amplitude relative to the coercive field. The experimental results were compared to numerical simulations and show good agreement.Citation
Applied Physics Letters
Volume
95
Pub Type
Journals
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Keywords
nanomagnetics, magnetic recording, microwave assisted magnetic reversal, magnetic switching, energy assisted magnetic reversal
Citation
Issues
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Created July 6, 2009, Updated February 19, 2017