Observation of D’yakonov-Perel’-type magnon spin relaxation in uniaxial antiferromagnetic insulators
. First, an over 450% enhancement of the first-harmonic nonlocal signal induced by a magnetic field is observed prior to the spin-flop transition, which can be well-interpreted by our model incorporating D'yakonov-Perel'-type magnon spin relaxation. Secondly, we find that the magnon spin diffusion length in both crystals increases with magnetic field and saturates at fields above 0.8 T, consistent with our model. Finally, the temperature dependence of the zero-field magnon spin diffusion length in both AFM insulators can be qualitatively explained through our model. These findings are valuable for the development of low-dissipation antiferromagnetic spintronic devices.
Authors
- Qinwu Gao (ORCID: https://orcid.org/0000-0001-6819-5981)
- Ka Shen
- Junxue Li (ORCID: https://orcid.org/0000-0003-4113-8703)
- Andi Cong (ORCID: https://orcid.org/0000-0003-1021-5278)
- Lang Chen (ORCID: https://orcid.org/0000-0002-8762-892X)
- Bokai Liang
- Jingjing Liu
- Meng Yang
- Shiwei Wu (ORCID: https://orcid.org/0000-0001-9838-9066)
Institutions
- Fudan University (CN)
- Beijing Normal University (CN)
- Southern University of Science and Technology (CN)
- Institute for Advanced Study (DE)
- State Key Laboratory of Surface Physics
- Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2026-04-13
- DOI
- https://doi.org/10.1038/s41467-026-71298-y
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Fudan University
- Tongji University
- Southern University of Science and Technology
- National Key Research and Development Program of China
- Basic and Applied Basic Research Foundation of Guangdong Province