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Large Piezoelectricity and Ferroelectricity in Mn‐Doped (Bi 0.5 Na 0.5 )TiO 3 ‐BaTiO 3 Thin Film Prepared by Pulsed Laser Deposition
Author(s) -
Lin Qianru,
Ding Rui,
Li Qian,
Tay Yee Yan,
Wang Danyang,
Liu Yun,
Huang Yizhong,
Li Sean
Publication year - 2016
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14227
Subject(s) - pulsed laser deposition , ferroelectricity , materials science , thin film , piezoelectricity , doping , analytical chemistry (journal) , piezoelectric coefficient , heterojunction , epitaxy , mineralogy , deposition (geology) , optoelectronics , dielectric , nanotechnology , composite material , chemistry , paleontology , chromatography , layer (electronics) , sediment , biology
Mn‐doped (Bi 0.5 Na 0.5 ) 0.94 Ba 0.06 TiO 3 (Mn BNBT ) thin films were prepared on SrRuO 3 ( SRO )‐coated (001) SrTiO 3 ( STO ) single crystal substrates by pulsed laser deposition under different processing conditions. Structural characterization (i.e., XRD and TEM ) confirms the epitaxial growth of STO / SRO /Mn BNBT heterostructures. Through the judicious control of deposition temperature, the defect level within the films can be finely tuned. The Mn BNBT thin film deposited at the optimized temperature exhibits superior ferroelectric and piezoelectric responses with remanent polarization P r of 33.0 μC/cm 2 and piezoelectric coefficient d 33 of 120.0 ± 20 pm/V.