Raman Investigation of Ru$_{2}$Si$_{3}$ Single Crystals and Thin Films

Raman spectra were obtained from Ru$_{2}$Si$_{3}$ single crystals and thin films. The spectra were taken with the incident light polarization parallel and perpendicular to each axis of the single crystal. When inspecting all the spectra of multiple geometric configurations, we were able to observe a total of thirteen phonon modes. To the best of our knowledge, there are very few published results with which to compare. However, the encouraging point of this work is that when spectra were obtained on thin film material composed of multiple crystal orientations, we have a very close correspondence to the modes found from the experiments on the single crystal.