Interactions between spin wave and magnetic domain structures

Spin waves are considered as promising candidate for realizing compact wave-based computing. Recently quite a lot of research efforts have been spent to explore the interactions between spin wave and magnetic domain structures, with the goal of realizing efficient modulation of spin wave propagation. Particularly, spin wave transmission along or across the wall between different magnetic domains have been studied experimentally, numerically and analytically. In this talk, I will describe our recent experimental activities on investigating the mutual interactions between magnetic domain wall and spin wave, where magnetic domain walls manipulate the phase and magnitude of spin wave, and a strong spin wave in turn moves the position of magnetic domain walls [1]. These mutual interactions can potentially provide the possibility of realizing all-magnon spintronic devices.
[1] “Mutual control of coherent spin waves and magnetic domain walls in a magnonic device”, Science 366, 1121 (2019)