Néel Skyrmion Bubbles in La0.7Sr0.3Mn1–xRuxO3 Multilayers

Research output: Contribution to journalResearch articleContributedpeer-review



Ferromagnetic La0.7Sr0.3Mn1-xRuxO3 epitaxial multilayers with controlled variation of the Ru/Mn content were synthesized to engineer canted magnetic anisotropy and variable exchange interactions, and to explore the possibility of generating a Dzyaloshinskii-Moriya interaction. The ultimate aim of the multilayer design is to provide the conditions for the formation of domains with nontrivial magnetic topology in an oxide thin film system. Employing magnetic force microscopy and Lorentz transmission electron microscopy in varying perpendicular magnetic fields, magnetic stripe domains separated by Néel-type domain walls as well as Néel skyrmions smaller than 100 nm in diameter were observed. These findings are consistent with micromagnetic modeling, taking into account a sizable Dzyaloshinskii-Moriya interaction arising from the inversion symmetry breaking and possibly from strain effects in the multilayer system.


Original languageEnglish
Pages (from-to)3532-3539
Number of pages8
JournalNano letters
Issue number8
Publication statusPublished - 5 Apr 2023

External IDs

Scopus 85152211694
WOS 000968186700001
ORCID /0000-0002-2484-4158/work/142257543



  • Dzyaloshinskii−Moriya interaction, Lorentz transmission electron microscopy, canted magnetic anisotropy, ferromagnetic perovskite manganites, magnetic force microscopy, Ferromagnetic perovskite manganites, Dzyaloshinskii-Moriya interaction, Canted magnetic anisotropy, Magnetic force microscopy