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. 2020 Nov 4;10:19003. doi: 10.1038/s41598-020-76036-y

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© The Author(s) 2020

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Temperature dependence of the frequency, linewidth, and normalized intensity of (a) E_g, (b) A_1g, and (c) LO modes for bilayer PtSe₂ thin film. The thin solid lines indicate the results of the fitting from the anharmonic model by using Eqs. (3) and (4).