期刊
PHYSICAL REVIEW RESEARCH
卷 3, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.3.023232
关键词
-
资金
- IBS Center for Correlated Electron Systems [IBS-R009-G2]
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2020R1F1A1076742, 2021R1C1C1009494]
- NRF [2019K1A3A7A09033393, 2020R1A5A1016518, NRF-2017R1A5A1014862, NRF-2019R1A2C2002601]
- US DOE [DE-AC02-06CH11357]
- National Center for Inter-University Research Facilities (NCIRF) at Seoul National University in Korea
- Korea Institute of Science and Technology [2E31032]
- National Research Foundation of Korea [2021R1C1C1009494, 2019K1A3A7A09033393, 2020R1F1A1076742, 2E31030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
By investigating SrRuO3 ultrathin films, a humplike feature in the Hall effect was observed, revealing the stability and generation mechanism of this feature related to atomic rumplings enhancing the Dzyaloshinskii-Moriya interaction. Furthermore, temperature-dependent resonant x-ray measurements confirmed the correlation between intensity modulation of unexpected peaks and the hump region in the Hall effect.
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据