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arXiv · 1308.3341

Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction

Jung-Hwan Moon·Soo-Man Seo·Kyung-Jin Lee·Kyung-Whan Kim·Jisu Ryu·Hyun-Woo Lee·R. D. McMichael·M. D. Stiles
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Abstract

In ferromagnetic thin films, broken inversion symmetry and spin-orbit coupling give rise to interfacial Dzyaloshinskii-Moriya interactions. Analytic expressions for spin-wave properties show that the interfacial Dzyaloshinskii-Moriya interaction leads to non-reciprocal spin-wave propagation, i.e. different properties for spin waves propagating in opposite directions. In favorable situations, it can increase the spin-wave attenuation length. Comparing measured spin wave properties in ferromagnet$|$normal metal bilayers and other artificial layered structures with these calculations can provide a useful characterization of the interfacial Dzyaloshinskii-Moriya interactions.

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Jung-Hwan Moon, Soo-Man Seo, Kyung-Jin Lee, Kyung-Whan Kim, Jisu Ryu, Hyun-Woo Lee, R. D. McMichael, M. D. Stiles. 2013-08-15. Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction. https://doi.org/10.1103/physrevb.88.184404

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