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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Topological Hall effect (THE), an electrical transport signature of systemswith chiral spin textures like skyrmions, has been observed recently intopological insulator (TI)-based magnetic heterostructures. However, theintriguing interplay between the topological surface state and THE is yet to befully understood. In this work, we report a large THE of ~10 ohm (~4micro-ohm*cm) at 2 K with an electrically reversible sign in a top-gated 4 nmTI (Bi0.3Sb0.7)2Te3 (BST) grown on a ferrimagnetic insulator (FI) europium irongarnet (EuIG). Temperature, external magnetic field angle, and top gate biasdependences of magnetotransport properties were investigated and consistentwith a skyrmion-driven THE. Most importantly, a sign change in THE wasdiscovered as the Fermi level was tuned from the upper to the lower parts ofthe gapped Dirac cone and vice versa. This discovery is anticipated to impacttechnological applications in ultralow power skyrmion-based spintronics.

Electrically Sign-Reversible Topological Hall Effect in a Top-Gated  Topological Insulator (Bi,Sb)2Te3 on a Ferrimagnetic Insulator Europium Iron  Garnet