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Probing electric field control of magnetism using ferromagnetic resonance



Ziyao Zhou, Morgan Trassin, Ya Gao, Yuan Gao, Diana Qiu, Khalid Ashraf, Tianxiang Nan, Xi Yang, Samuel R. Bowden, Daniel T. Pierce, Mark D. Stiles, John Unguris, Ming Liu, Brandon Howe, Gail Brown, Sayeef Salahuddin, Ramamoorthy Ramesh, Nian Sun


A question of fundamental importance in multiferroic materials, such as BiFeO3, is whether the canted moment arising from the Dzyalozhinski-Moriya coupling is switchable with the application of an electric field. Since this canted moment is weak, directly probing it has been problematic. In this work, we have used a model ferromagnet (Co0.1Fe0.9) - BiFeO3 heterostructure to prove that the canted moment does indeed reverse direction with the application of a bipolar electric field. We have used a combination of spatially resolved magnetic imaging coupled with electric field dependent ferromagnetic resonance spectroscopy to provide direct evidence for such a reversal. This constitutes an important step toward robust repeatable and non-volatile voltage induced 180° magnetization switching in thin film multiferroic heterostructures.
Nature Communications


multiferroic, ferromagnetic resonance, BFO, SEMPA


Zhou, Z. , Trassin, M. , Gao, Y. , Gao, Y. , Qiu, D. , Ashraf, K. , Nan, T. , Yang, X. , Bowden, S. , Pierce, D. , Stiles, M. , Unguris, J. , Liu, M. , Howe, B. , Brown, G. , Salahuddin, S. , Ramesh, R. and Sun, N. (2015), Probing electric field control of magnetism using ferromagnetic resonance, Nature Communications, [online],, (Accessed May 26, 2024)


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Created January 28, 2015, Updated October 12, 2021