- AutorIn
- Cameliu Constantin Himcinschi TU Bergakademie Freiberg#Institut für Theoretische Physik
- Titel
- Raman spectroscopy: from ferroelastic domain identification to strain tuning
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:105-qucosa2-727257
- Datum der Einreichung
- 29.01.2020
- Datum der Verteidigung
- 10.09.2020
- Abstract (EN)
- This cumulative Habilitation thesis summarizes several examples related to the application of Raman spectroscopy for the investigation of coupling phenomena induced by epitaxially, mechanically or piezoeletrically applied strain. Methods for quantitative determination of strain by Raman spectroscopy are proposed for some materials such as BiFeO3 or strained Si. Raman spectroscopy was also used for understanding temperature induced phase transitions or orbital ordering, which are intimately related to specific phonon modes, as in the case of BiCrO3 or LaVO3, respectively. A method based on the Raman tensor formalism, which allows an assignment of the BiFeO3 Raman modes of pure as well as mixed character/symmetries is proposed. Relying on this assignment it is shown that Raman spectroscopy is a powerful tool for the investigation of ferroelastic domain formation in multiferoic materials, being able to probe the tilt of the domain walls.
- Freie Schlagwörter (DE)
- Raman-Spektroskopie, Multiferroika, verspanntes Silicium
- Freie Schlagwörter (EN)
- Raman spectroscopy, multiferroics, strained silicon
- Klassifikation (DDC)
- 530
- Normschlagwörter (GND)
- Raman-Spektroskopie
- Multiferroikum
- Silicium
- GutachterIn
- Prof. Dr. Johannes Heitmann
- Prof. Dr. Marin Alexe
- Prof. Dr. Jean Geurts
- Den akademischen Grad verleihende / prüfende Institution
- TU Bergakademie Freiberg, Freiberg
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:105-qucosa2-727257
- Veröffentlichungsdatum Qucosa
- 09.11.2020
- Dokumenttyp
- Habilitation
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis