Polaronic behaviour at manganite interfaces studied by advanced Raman scattering techniques
von Sebastian Merten
Datum der mündl. Prüfung:2019-10-29
Erschienen:2020-03-20
Betreuer:Prof. Dr. Vasily Moshnyaga
Gutachter:Prof. Dr. Vasily Moshnyaga
Gutachter:Prof. Dr. Claus Ropers
Gutachter:Prof. Dr. Kathrin Dörr
Dateien
Name:Dissertation.pdf
Size:34.2Mb
Format:PDF
Zusammenfassung
Englisch
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.
Keywords: Thin Films; Raman spectroscopy; Surface-Enhanced Raman spectroscopy; Oxide Surfaces; Manganites; Jahn-Teller polarons