A comparative analysis of BaTiO3/(Ba,Sr)TiO3 and BaTiO3/(Ba,Sr)TiO3/SrTiO3 artificial superlattices via Raman spectroscopy
- Yuzyuk, Yuri I.
- Ortega, Nora
- Kumar, Ashok
- Katiyar, Ram S.
- Barannikova, Svetlana A.
- Maslova, Olga A.
Publication date
January 2019
DOI Publisher
FapUNIFESP (SciELO) Language
EnglishAbstract
BaTiO3/Ba50Sr50TiO3 and BaTiO3/Ba50Sr50TiO3/SrTiO3 superlattices are characterized via Raman spectroscopy. Special attention is paid to a comprehensive analysis of their polarized Raman spectra, especially, within a soft mode (E(1TO)) range. The shift of E(1TO) soft mode is found to be more pronounced for BaTiO3/Ba50Sr50TiO3/SrTiO3 sample than for BaTiO3/Ba50Sr50TiO3, presumably owing to stronger 2D compression of BT layers and abruptly increased temperature of transition from ferroelectric to paraelectric phas
Add to ORKG