Imaging and phase-locking of non-linear spin waves.

ABSTRACT: Non-linear processes are a key feature in the emerging field of spin-wave based information processing and allow to convert uniform spin-wave excitations into propagating modes at different frequencies. Recently, the existence of non-linear magnons at half-integer multiples of the driving frequency has been predicted for Ni₈₀Fe₂₀ at low bias fields. However, it is an open question under which conditions such non-linear spin waves emerge coherently and how they may be used in device structures. Usually non-linear processes are explored in the small modulation regime and result in the well known three and four magnon scattering processes. Here we demonstrate and image a class of spin waves oscillating at half-integer harmonics that have only recently been proposed for t

SUBMITTER: Dreyer R 

PROVIDER: S-EPMC9399154 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature