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Large recoverable electrostrain in Mn-doped (Ba,Sr) TiO3 ceramics
Applied Physics Letters
In this letter we demonstrate that with a different principle, BaTiO 3 ceramics, so far considered as inferior piezoelectrics compared with Pb͑Zr, Ti͒O 3 (PZT), can show a large recoverable electrostrain. This principle utilizes a point-defect-mediated reversible domain switching mechanism, which can in theory generate 0.368% strain for BaTiO 3 ceramics at the best condition. Experimental results showed that, after aging at room temperature, 1.0 mol % Mn-doped ͑Ba 0.95 Sr 0.05 ͒TiO 3 ceramicsdoi:10.1063/1.1829394 fatcat:nfu4322vcbbhve45zc7z4z5yle