中文版 | English
Title

Long-Distance Coherent Propagation of High-Velocity Antiferromagnetic Spin Waves

Author
Publication Years
2023-03-03
DOI
Source Title
ISSN
0031-9007
EISSN
1079-7114
Volume130Issue:9
Abstract
We report on coherent propagation of antiferromagnetic (AFM) spin waves over a long distance (∼10 μm) at room temperature in a canted AFM α-Fe2O3 owing to the Dzyaloshinskii-Moriya interaction (DMI). Unprecedented high group velocities (up to 22.5 km/s) are characterized by microwave transmission using all-electrical spin wave spectroscopy. We derive analytically AFM spin-wave dispersion in the presence of the DMI which accounts for our experimental results. The AFM spin waves excited by nanometric coplanar waveguides have large wave vectors in the exchange regime and follow a quasilinear dispersion relation. Fitting of experimental data with our theoretical model yields an AFM exchange stiffness length of 1.7 Å. Our results provide key insights on AFM spin dynamics and demonstrate high-speed functionality for AFM magnonics.
© 2023 American Physical Society.
URL[Source Record]
Indexed By
EI ; SCI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
Funding Project
The authors thank M. Elyasi, P. Gambardella, K. Yamamoto, and S. Maekawa for their helpful discussions. We wish to acknowledge the support by the National Key Research and Development Program of China, Grants No. 2022YFA1402801 and No. 2022YFA1402603; NSF China under Grants No. 12074026, No. 52225106, No. 12241404, and No. U1801661; China Scholarship Council (CSC) under Grant No. 202206020091; and the Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology (Grant No. SIQSE202007).
WOS Research Area
Physics
WOS Subject
Physics, Multidisciplinary
WOS Accession No
WOS:001051011800012
Publisher
EI Accession Number
20231113702454
EI Keywords
Antiferromagnetism ; Coplanar waveguides ; Dispersion (waves) ; Hematite ; Spin dynamics
ESI Classification Code
Minerals:482.2 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Waveguides:714.3 ; Atomic and Molecular Physics:931.3
ESI Research Field
PHYSICS
Data Source
EV Compendex
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/519711
DepartmentDepartment of Physics
量子科学与工程研究院
Affiliation
1.Fert Beijing Institute, Miit Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing; 100191, China
2.International Quantum Academy, Shenzhen; 518048, China
3.Department of Materials, Eth Zurich, Zurich; 8093, Switzerland
4.Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing; 100084, China
5.Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen; 518055, China
6.Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne; 1015, Switzerland
Recommended Citation
GB/T 7714
Wang, Hanchen,Yuan, Rundong,Zhou, Yongjian,et al. Long-Distance Coherent Propagation of High-Velocity Antiferromagnetic Spin Waves[J]. PHYSICAL REVIEW LETTERS,2023,130(9).
APA
Wang, Hanchen.,Yuan, Rundong.,Zhou, Yongjian.,Zhang, Yuelin.,Chen, Jilei.,...&Yu, Haiming.(2023).Long-Distance Coherent Propagation of High-Velocity Antiferromagnetic Spin Waves.PHYSICAL REVIEW LETTERS,130(9).
MLA
Wang, Hanchen,et al."Long-Distance Coherent Propagation of High-Velocity Antiferromagnetic Spin Waves".PHYSICAL REVIEW LETTERS 130.9(2023).
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