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arXiv · 1603.08280

Electric-field modulation of exchange stiffness in MgO/CoFeB with perpendicular anisotropy

T. Dohi·S. Kanai·A. Okada·F. Matsukura·H. Ohno
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Abstract

We observe magnetic domain structures of MgO/CoFeB with a perpendicular magnetic easy axis under an electric field. The domain structure shows a maze pattern with electric-field dependent isotropic period. We find that the electric-field modulation of the period is explained by considering the electric-field modulation of the exchange stiffness constant in addition to the known magnetic anisotropy modulation.

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T. Dohi, S. Kanai, A. Okada, F. Matsukura, H. Ohno. 2016-03-28. Electric-field modulation of exchange stiffness in MgO/CoFeB with perpendicular anisotropy. https://arxiv.org/abs/1603.08280

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