Crystallographic direction dependence of direct current field induced strain and phase transitions in Na0.5Bi0.5TiO3-x%BaTiO3 single crystals near the morphotropic phase boundary

Chengtao Luo, Wenwei Ge, Qinhui Zhang, Jiefang Li, Haosu Luo, D. Viehland
2012 Applied Physics Letters  
The crystallographic dependence of the DC electric (E) field induced strain and phase transition in Na 0.5 Bi 0.5 TiO 3 -5.6%BaTiO 3 (NBT-5.6%BT) single crystals has been investigated. An induced transition between pseudocubic and tetragonal structures was observed under E ¼ 10 kV/cm for fields applied along the h001i direction, whereas an induced transition between pseudocubic and rhombohedral structures was observed when the E-field was applied along h111i. Our results show near the
more » ... near the morphotropic phase boundary that the phase stability of NBT-x%BT is dependent on the crystallographic direction along which E was applied. V C 2012 American Institute of Physics.
doi:10.1063/1.4757877 fatcat:az24u4tn7zhqfblygwkjbmgx2y