Several experimental and theoretical techniques are employed to study phonons at the nanoscale:
1. Raman Spectroscopy: This technique is used to measure the vibrational modes of materials. By analyzing the shifts in the Raman spectra, researchers can gain insights into the phonon modes of nanomaterials.
2. Neutron Scattering: Although challenging at the nanoscale, neutron scattering provides detailed information about phonon dispersion relations in materials.
3. Molecular Dynamics Simulations: These simulations help in understanding phonon behavior by modeling the atomic interactions in nanomaterials.
