The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
Magnetic Order and Symmetry in the 2D Semiconductor CrSBr
Open accessAbstract
The advent of two-dimensional (2D) magnets offers unprecedented control over electrons and spins. A key factor in determining exchange coupling and magnetic order is symmetry. Here, we apply second harmonic generation (SHG) to probe a 2D magnetic semiconductor CrSBr. We find that monolayers are ferromagnetically ordered below 146 K, an observation enabled by the discovery of a large magnetic dipole SHG effect in the centrosymmetric structure. In multilayers, the ferromagnetic monolayers are coupled antiferromagnetically, and in contrast to other 2D magnets, the Néel temperature of CrSBr increases with decreasing layer number. We identify magnetic dipole and magnetic toroidal moments as order parameters of the ferromagnetic monolayer and antiferromagnetic bilayer, respectively. These findings establish CrSBr as an exciting 2D magnetic semiconductor and extend the SHG probe of magnetic symmetry to the monolayer limit, opening the door to exploring the applications of magnetic-electronic coupling and the magnetic toroidal moment.
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Cites
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Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
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Self-citationThe Principles of Nonlinear Optics
Shen, Y. R. (1984) · Cited by 5,211
Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals
Gong, C., Li, L., Li, Z., Ji, H., Stern, A., Xia, Y., Cao, T., Bao, W., Wang, C., Wang, Y., et al. (2017) · Nature · doi:10.1038/nature22060 · Cited by 5,050
The Principles of Nonlinear Optics
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Magnetic 2D materials and heterostructures
Gibertini, M., Koperski, M., Morpurgo, A. F., & Novoselov, K. S. (2019) · Nature Nanotechnology · doi:10.1038/s41565-019-0438-6 · Cited by 1,775
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Cited by
Excitons and emergent quantum phenomena in stacked 2D semiconductors
Wilson, N. P., Yao, W., Shan, J., & Xu, X. (2021) · Nature · doi:10.1038/s41586-021-03979-1 · Cited by 319
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Metadata
- Authors
- Lee, K., Dismukes, A. H., Telford, E. J., Wiscons, R. A., Wang, J., Xu, X., Nuckolls, C., Dean, C. R., Roy, X., & Zhu, X.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-04-15
- Volume
- 21
- Issue
- 8
- Pages
- 3511-3517
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W3044888767
- Cited by
- 425
- References
- 48
- FWCI
- 15.84
- Type
- journal article
- Language
- en
- Open access
- green
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- Lee, K., Dismukes, A. H., Telford, E. J., Wiscons, R. A., Wang, J., Xu, X., Nuckolls, C., Dean, C. R., Roy, X., & Zhu, X. (2021). Magnetic Order and Symmetry in the 2D Semiconductor CrSBr. Nano Letters. https://doi.org/10.1021/acs.nanolett.1c00219
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