Linear electro-optical properties of tetragonal BaTiO3

Pramana

P U Sastry¹ 

[1] Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India$$

关键词: Ferroelectrics;    crystal structure;    electro-optical;    bond charge.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Linear optical susceptibility and clamped linear electro-optical tensor coefficients of tetragonal BaTiO3 are calculated using a formalism based on bond charge theory. Calculated values are in close agreement with experimental data. The covalent Ti–O bonds constituting distorted TiO6 octahedral groups are found to be major contributors to the electro-optic coefficients making them more sensitive than the BaO12 groups for these properties. Orientations of chemical bonds play an important role in determining these properties.

【 授权许可】

Unknown