Microwave assisted magnetization reversal in single domain nanoelements
Hans T. Nembach, Hans Bauer, Justin M. Shaw, Michael Schneider, Thomas J. Silva
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.
, Bauer, H.
, Shaw, J.
, Schneider, M.
and Silva, T.
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 1, 2023)