Details

Autor(en) / Beteiligte

• Dwij, Vivek
• De, Binoy Krishna
• Gupta, Mukul
• Niti
• Sathe, V. G.
• Yusuf, S. M.
• Sharma, Veerendra K.
• Prajapat, C. L.

Titel

Study of local structure of Sr0.95Pr0.05TiO3 thin film: Absence of antiferrodistortive phase

Ist Teil von

• AIP Conference Proceedings, 2020, Vol.2265 (1)

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2020

Beschreibungen/Notizen

• 5% Pr doped SrTiO3 thin film has been synthesized using Pulse Laser deposition. XANES and Raman spectroscopic measurements were carried out to investigate the local structure of the thin film. The Raman results revealed absence of Antiferrodistortive (tetragonal) phase in the synthesized thin film till 80K in contradiction to the corresponding bulk compound. This effect has been attributed to the strong polar order (FE) emerging from Ti off-centering which competes and cancels Antiferrodistortive (AFD) instability arising from octahedral tilt (present in the parent SrTiO3). Dominance of polar order occurring due to larger Ti off-centering has been conformed using Raman spectroscopy and XANES studies carried out on the film.