Stable humplike Hall effect and noncoplanar spin textures in SrRuO3 ultrathin filmsopen access
- Authors
- Sohn, Byungmin; Kim, Bongju; Park, Se Young; Choi, Hwan Young; Moon, Jae Young; Choi, Taeyang; Choi, Young Jai; Zhou, Hua; Choi, Jun Woo; Bombardi, Alessandro; Porter, Dan G.; Chang, Seo Hyoung; Han, Jung Hoon; Kim, Changyoung
- Issue Date
- Jun-2021
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW RESEARCH, v.3, no.2
- Journal Title
- PHYSICAL REVIEW RESEARCH
- Volume
- 3
- Number
- 2
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/49862
- DOI
- 10.1103/PhysRevResearch.3.023232
- ISSN
- 2643-1564
2643-1564
- Abstract
- We observed a humplike feature in Hall effects of SrRuO3 ultrathin films, and systematically investigated it by controlling thicknesses, temperatures and magnetic fields. The humplike feature is extremely stable, even surviving as a magnetic field is tilted by as much as 85 degrees. Based on the atomic-level structural analysis of a SrRuO3 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 humplike Hall effect. Moreover, temperature dependent resonant x-ray measurements at the 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 noncoplanar spin textures having a magnetic order in a ferromagnetic oxide material.
- Files in This Item
-
- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/49862)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.