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How can someone use Raman Spectroscopy to obtain information for the phonon modes of a crystal? I am asking for some paper that contains information about Raman Spectroscopy and Phonons from an experimental point of view.

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The photon momentum of visible light is small compared to phonon momentum in crystals so one can only see phonons at $\Delta k=0$.

But now there is the technique of (Resonant) X-ray Raman Scattering with resolution high enough to see phonons and magnons and measure their dispersion curves.

Introduction to High-Resolution Inelastic X-Ray Scattering, Baron (2015)

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