Multifold polar states in Zn-doped Sr0.9Ba0.1TiO3 ceramics
Guo Yan-Yana), Guo Yun-Junb), Wei Tongc), Liu Jun-Ming†d)
       
Sketch graphs for lattice distortions in Ba-doped and Zn-doped STO lattice, showing (a) Ba-doping-induced lattice expansion, (b) Zn-doping-induced lattice contraction, (c) mutual offset effect between Zn-doping-induced lattice contraction and Ba-doping-induced lattice expansion, and (d) two neighboring Zn-doped cells with the TiO6 octahedra tilted in opposite directions.