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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Skyrmions are particle-like vortices of magnetization with non-trivialtopology, which are usually stabilized by Dzyaloshinskii-Moriya interactions(DMI) in noncentrosymmetric bulk materials. Exceptions are centrosymmetric Gd-and Eu-based skyrmion-lattice (SkL) hosts with net zero DMI, where both thedominant SkL stabilization mechanisms and ground-state magnetic propertiesremain controversial. In this Letter we use muon spectroscopy ($\mu$SR) toaddress these by investigating both static and dynamic spin properties of themost-studied centrosymmetric SkL host, Gd$_2$PdSi$_3$. We find that spinfluctuations in the non-coplanar SkL phase are highly anisotropic, implyingthat spin anisotropy plays a prominent role in stabilizing this phase.Intriguingly, we also observe strongly-anisotropic spin fluctuations in theground-state (IC-1) incommensurate magnetic phase of the material, indicatingthat it is a complex multi-$q$ magnetic structure. On the other hand, thehigher-field coplanar IC-2 phase is found to be single-$q$ with mostlyisotropic spin dynamics.

Skyrmion and incommensurate spin dynamics in centrosymmetric Gd$_2$PdSi$_3$