Pressure driven ferroelectric to paraelectric transition in Sr doped BaTiO{sub 3}

Journal Article · Sat Feb 07 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4907587· OSTI ID:22413047

Basu, Abhisek; Jana, Rajesh; Mandal, Guruprasad; Chandra, Amreesh ^[1]

---

1. Department of Physics and Meteorology, Indian Institute of Technology-Kharagpur, Kharagpur 721302, West Bengal (India)

High pressure Raman spectroscopy, X-ray diffraction, and dielectric measurements have been carried out in Ba{sub 1−x}Sr{sub x}TiO{sub 3} (x = 0.05 and 0.1). Detailed structural analysis revealed a single phase transition from tetragonal P4mm to cubic Pm3m symmetry. Increase in Sr ion concentration resulted in decrease in the phase transition pressure. The dielectric measurements showed considerable lowering of transition pressure which has been attributed to bulk behaviour of the material.

• OSTI ID: 22413047
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CONCENTRATION RATIO
CUBIC LATTICES
DIELECTRIC PROPERTIES
DOPED MATERIALS
FERROELECTRIC MATERIALS
PHASE TRANSFORMATIONS
PRESSURE DEPENDENCE
RAMAN SPECTROSCOPY
STRONTIUM IONS
STRONTIUM TITANATES
TETRAGONAL LATTICES
X-RAY DIFFRACTION