@article{f0e6718bf4bf41678d10e9342f2edafb,
title = "Spontaneous Asymmetry of Chiral Magnetic Domains Within a Magnetic Field",
abstract = "Chiral magnetic domains are topological spin textures in which the Dzyaloshinskii–Moriya interaction assigns a given chirality to the domain walls. Notably, despite rapid progress in chiral magnetic research, one fundamental issue that remains unclear is how the chirality of chiral magnetic domains change as a magnetic field deforms the spin texture. Using spin-polarized low energy electron microscopy, the evolution of Fe/Ni chiral magnetic stripe domains are investigated in single-crystalline Fe/Ni/Cu/Co/Cu(001) multilayers in which the interlayer magnetic coupling between the Co and Fe/Ni films serves as an in-plane magnetic field. Contrary to theoretical works, it is found that the chirality of the N{\'e}el walls results in a parallel alignment of the magnetic stripes with the in-plane magnetic field direction. The transformation of chiral N{\'e}el walls into achiral Bloch walls can be precisely controlled by tuning the Cu spacer layer thickness. In addition, the domain wall exhibits a spontaneous asymmetry within the in-plane magnetic field, leading to an unbalanced chirality between the left-handed and right-handed Bloch walls. These new results foster a better understanding of the chiral domain properties within a magnetic field.",
author = "Qian Li and Mengmeng Yang and Gong Chen and Yoon, {Han Gyu} and Kwon, {Hee Young} and Changyeon Won and Tianye Wang and Chanyong Hwang and Xixiang Zhang and Yizheng Wu and Schmid, {Andreas K.} and Qiu, {Z. Q.}",
note = "KAUST Repository Item: Exported on 2022-10-13 Acknowledgements: The project is primarily supported by U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Contract No. DE-AC02-05CH11231 (van der Waals heterostructures program, KCWF16). This work was also financially supported by the Users with Excellence Program of Hefei Science Center CAS (No. 2021HSC-UE003), National Natural Science Foundation of China (grant nos. 12174364 and 12104003), Natural Science Foundation of Anhui Province (grant no. 2108085QA20), the Fundamental Research Funds for the Central Universities (No. wk2310000104), and Open Fund of State Key Laboratory of Surface Physics of Fudan University (No. KF2020_06, KF2021_05). Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. G.C. acknowledges support by the NSF (DMR-1610060) and the UC Office of the President Multicampus Research Programs and Initiatives (MRP-17-454963). C.W. and H.G.Y. acknowledges support by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Korean Government (NRF-2018R1D1A1B07047114). Y.Z.W. acknowledges support by National Natural Science Foundation of China (grants nos. 11734006 and 11974079) and Shanghai Municipal Science and Technology Major Project (grant no. 2019SHZDZX01). C.H. acknowledges support by Future Materials Discovery Program through the National Research Foundation of Korea (No. 2015M3D1A1070467), and Science Research Center Program through the National Research Foundation of Korea (No. 2015R1A5A1009962). X.Z. acknowledges support by King Abdullah University of Science and Technology (KAUST). This work was partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication.",
year = "2022",
month = oct,
day = "10",
doi = "10.1002/adfm.202205364",
language = "English (US)",
pages = "2205364",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley",
}