English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A theoretical study on the dynamics of an antiferromagnetic (AFM) skyrmion isindispensable for revealing the underlying physics and understanding thenumerical and experimental observations. In this work, we present a reliabletheoretical treatment of the spin current induced motion of an AFM skyrmion inthe absence and presence of pinning defect. For an ideal AFM system free ofdefect, the skyrmion motion velocity as a function of the intrinsic parameterscan be derived, based on the concept that the skyrmion profile agrees well withthe 360 domain wall formula, leading to an explicit description of the skyrmiondynamics. However, for an AFM lattice containing a defect, the skyrmion can bepinned and the depinning field as a function of damping constant and pinningstrength can be described by the Thiele approach. It is revealed that thedepinning behavior can be remarkably influenced by the time dependentoscillation of the skyrmion trajectory. The present theory provides acomprehensive scenario for manipulating the dynamics of AFM skyrmion,informative for future spintronic applications based on antiferromagnets.

Dynamics of antiferromagnetic skyrmion in absence and presence of pinning defect