Voltage-controlled magnetic anisotropy (VCMA) in an epitaxially grown Fe/FeCo/Pd/MgO system was investigated using spin-wave spectroscopy. The spin-wave resonant frequency linearly depended on the bias-voltage. The resonant-frequency shift increased with the Co fraction in FeCo/Pd. We achieved a VCMA of approximately 250 fJ/Vm at the Co/Pd/MgO region.
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| http://dx.doi.org/10.1038/s41598-018-28445-3 | DOI Listing |
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