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Spin-Mechanical Coupling in 2D Antiferromagnet CrSBr
- Source :
- Nano Letters; August 2024, Vol. 24 Issue: 34 p10467-10474, 8p
- Publication Year :
- 2024
-
Abstract
- Spin-mechanical coupling is vital in diverse fields including spintronics, sensing, and quantum transduction. Two-dimensional (2D) magnetic materials provide a unique platform for investigating spin-mechanical coupling, attributed to their mechanical flexibility and novel spin orderings. However, studying their spin-mechanical coupling presents challenges in probing mechanical deformation and thermodynamic property changes at the nanoscale. Here we use nano-optoelectromechanical interferometry to mechanically detect the phase transition and magnetostriction effect in multilayer CrSBr, an air-stable antiferromagnet with large magnon-exciton coupling. The transitions among antiferromagnetism, spin-canted ferromagnetism, and paramagnetism are visualized. Nontrivial magnetostriction coefficient 2.3 × 10–5and magnetoelastic coupling strength on the order of 106J/m3have been found. Moreover, we demonstrate the substantial tunability of the magnetoelastic constant by nearly 50% via gate-induced strain. Our findings demonstrate the strong spin-mechanical coupling in CrSBr and pave the way for developing sensitive magnetic sensing and efficient quantum transduction at the atomically thin limit.
Details
- Language :
- English
- ISSN :
- 15306984 and 15306992
- Volume :
- 24
- Issue :
- 34
- Database :
- Supplemental Index
- Journal :
- Nano Letters
- Publication Type :
- Periodical
- Accession number :
- ejs67065281
- Full Text :
- https://doi.org/10.1021/acs.nanolett.4c01751