Direct observation of highly confined phonon polaritons in suspended monolayer hexagonal boron nitride.
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Li N, et al. Among authors: liu k, liu l.
Nat Mater. 2021 Jan;20(1):43-48. doi: 10.1038/s41563-020-0763-z. Epub 2020 Aug 17.
Nat Mater. 2021.
PMID: 32807920