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Stable hump-like Hall effect and non-coplanar spin textures in SrRuO$_3$ ultrathin film
- Publication Year :
- 2018
- Publisher :
- arXiv, 2018.
-
Abstract
- We observed a hump-like feature in Hall effects of SrRuO$_3$ ultrathin films, and systematically investigated it with controlling thicknesses, temperatures and magnetic fields. The hump-like feature is extremely stable, even surviving as a magnetic field is tilted by as much as 85$^\circ$. Based on the atomic-level structural analysis of a SrRuO$_3$ ultrathin film with a theoretical calculation, we reveal that atomic rumplings at the thin-film surface enhance Dzyaloshinskii-Moriya interaction, which can generate stable chiral spin textures and a hump-like Hall effect. Moreover, temperature dependent resonant X-ray measurements at Ru L-edge under a magnetic field showed that the intensity modulation of unexpected peaks was correlated with the hump region in the Hall effect. We verify that the two-dimensional property of ultrathin films generates stable non-coplanar spin textures having a magnetic order in a ferromagnetic oxide material.
- Subjects :
- Materials science
Condensed matter physics
Strongly Correlated Electrons (cond-mat.str-el)
Magnetic order
Oxide
FOS: Physical sciences
Magnetic field
Condensed Matter - Strongly Correlated Electrons
chemistry.chemical_compound
Condensed Matter::Materials Science
chemistry
Ferromagnetism
Hall effect
Condensed Matter::Superconductivity
Condensed Matter::Strongly Correlated Electrons
Intensity modulation
Non coplanar
Spin-½
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....8bdf5508878221a58d39ac931384a7e5
- Full Text :
- https://doi.org/10.48550/arxiv.1810.01615