Theory of isolated magnetic skyrmions: From fundamentals to room temperature applications.

ABSTRACT: Magnetic skyrmions are topological quasiparticles of great interest for data storage applications because of their small size, high stability, and ease of manipulation via electric current. However, although models exist for some limiting cases, there is no universal theory capable of accurately describing the structure and energetics of all skyrmions. The main barrier is the complexity of non-local stray field interactions, which are usually included through crude approximations. Here we present an accurate analytical framework to treat isolated skyrmions in any material, assuming only a circularly-symmetric 360° domain wall profile and a homogeneous magnetization profile in the out-of-plane direction. We establish the first rigorous criteria to distinguish stray field from DMI skyrmions,

SUBMITTER: Buttner F 

PROVIDER: S-EPMC5849609 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature