Fig. 3: Raman Spectroscopy of few layer MnPSe3. | npj 2D Materials and Applications

Fig. 3: Raman Spectroscopy of few layer MnPSe3.

From: Spin-order-dependent magneto-elastic coupling in two dimensional antiferromagnetic MnPSe3 observed through Raman spectroscopy

Fig. 3

a Raman spectra of 14 nm thin MnPSe3 at low (5 K), and high (250 K), displaying 7 clearly identifiable peaks. b–e Temperature dependence of the phonon modes P4 through to P7. Intensity is increased for visual purposes with the given magnification factors. f–i Change in peak position as a function of temperature measured in a range of MnPSe3 sample thicknesses from 7.3 nm to > 200 nm (bulk). The initial peak position is set to 0 and is highlighted with a horizontal dotted line. Peak position is seen to be mostly consistent throughout the full range of thicknesses tested. Variations seen in P5 are explored further in the main text and Supplementary Note 3. Error bars are formed from a combination of ± 1σ std. dev. from Voigt curve fitting and ± 0.25*CCD spectral resolution.

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