A new class of nonreciprocal spin waves on the edges of 2D antiferromagnetic honeycomb nanoribbons.

ABSTRACT: Antiferromagnetic two-dimensional (2D) materials are currently under intensive theoretical and experimental investigations in view of their potential applications in antiferromagnet-based magnonic and spintronic devices. Recent experimental studies revealed the importance of magnetic anisotropy and of Dzyaloshinskii-Moriya interactions (DMI) on the ordered ground state and the magnetic excitations in these materials. In this work we present a robust classical field theory approach to study the effects of anisotropy and the DMI on the edge and bulk spin waves in 2D antiferromagnetic nanoribbons. We predict the existence of a new class of nonreciprocal edge spin waves, characterized by opposite polarizations in counter-propagation. These novel edge spin waves are induced by the DMI and are f

SUBMITTER: Ghader D 

PROVIDER: S-EPMC6811631 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature