This work focusses on the polaronic behaviour at manganite interfaces studied by various Raman spectroscopy techniques. Temperature- and magnetic-field-dependent studies probe the polaronic behaviour at the internal interfaces within the phase-separated material showing a strong correlation to the metal-insulator transition and colossal magnetoresistance. Surface-Enhanced Raman studies analyze the manganite's surface and show a strongly Jahn-Teller distorted surface layer of several nanometers thickness.
