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



Jung-Hwan Moon, Soo-Man Seo, Kyung Jin Lee, Kyoung-Whan Kim, Jisu Ryu, Hyun-Woo Lee, Robert McMichael, Mark D. Stiles


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 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.
Physical Review B


spin-waves, Dzyaloshinskii-Moriya, magnetization dynamics, magnetic exchange, magnetic bilayers


Moon, J. , Seo, S. , Lee, K. , Kim, K. , Ryu, J. , Lee, H. , McMichael, R. and Stiles, M. (2013), Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction, Physical Review B, [online], (Accessed February 29, 2024)
Created November 3, 2013, Updated October 12, 2021