Can I read Strongly pinned skyrmionic bubbles and higher-order nonlinear Hall resistances at the interface of Pt/FeSi bilayer on EtoBox?

Strongly pinned skyrmionic bubbles and higher-order nonlinear Hall resistances at the interface of Pt/FeSi bilayer by Hori, T.; Kanazawa, N.; Matsuura, K.; Ishizuka, H.; Fujiwara, K.; Tsukazaki, A.; Ichikawa, M.; Kawasaki, M.; Kagawa, F.; Hirayama, M.; Tokura, Y. is a scholarly article available to read on EtoBox.

What is Strongly pinned skyrmionic bubbles and higher-order nonlinear Hall resistances at the interface of Pt/FeSi bilayer about?

Engineering of magnetic heterostructures for spintronic applications has entered a new phase, driven by the recent discoveries of topological materials and exfoliated van der Waals materials. Their low-dimensional properties can be dramatically modulated in designer heterostructures via proximity effects from adjacent materials, thus enabling the realization of diverse quantum states and functionalities. Here we investigate spin-orbit coupling (SOC) proximity effects of Pt on the recently discovered quasi-two-dimensional ferromagnetic state at FeSi surface. Skyrmionic bubbles (SkBs) are formed as a result of the enhanced interfacial Dzyloshinskii-Moriya interaction. The strong pinning effects on the SkBs are evidenced from the significant dispersion in size and shape of the SkBs and are further identified as a greatly enhanced threshold current density required for depinning of the SkBs. The robust integrity of the SkB assembly leads to the emergence of higher-order nonlinear Hall effects in the high current density regime, which originate from nontrivial Hall effects due to the noncollinearity of the spin texture, as well as from the current-induced magnetization dynamics via the

Author

Hori, T.; Kanazawa, N.; Matsuura, K.; Ishizuka, H.; Fujiwara, K.; Tsukazaki, A.; Ichikawa, M.; Kawasaki, M.; Kagawa, F.; Hirayama, M.; Tokura, Y.

Published

2023

Language

EN