Investigation of a peculiar relaxor ferroelectric: Na0.5Bi0.5TiO3.
The relaxor ferroelectric, Sodium Bismuth Titanate, (Na0.5Bi0.5TiO3), NBT is an A-site substituted distorted perovskite. An extensive temperature-, pressure- and substitution-dependent study of the crystal structure and phase transitions in this compound has been carried out using neutron/x-ray diffraction techniques. This has been complemented with optical, Raman and computational modelling studies.The temperature-dependent investigation shows that NBT undergoes a first phase transition from...Expand abstract
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