Premium
Structural and Electric Properties of Sol–Gel‐Derived Ba 0.9 Sr 0.1 TiO 3 Multilayers
Author(s) -
Hong X. K.,
Hu G. J.,
Chen J.,
Chu J. H.,
Dai N.
Publication year - 2007
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/j.1551-2916.2007.01552.x
Subject(s) - materials science , doping , coercivity , ferroelectricity , analytical chemistry (journal) , electric field , polarization (electrochemistry) , mineralogy , dielectric , condensed matter physics , chemistry , optoelectronics , physics , chromatography , quantum mechanics
Crack‐free Ba 0.9 Sr 0.1 TiO 3 (BST) and Mn‐doped Ba 0.9 Sr 0.1 TiO 3 (BSTM) multilayers with thickness over 2 μm have been prepared by chemical solution deposition based on one single precursor. Both multilayers exhibit good performance as Bragg reflectors. Mn doping tends to suppress the leakage current in BST multilayers effectively by smoothing the layers and the reduction of the charge carries. The Mn‐doped BST multilayer displays an excellent ferroelectric property, with an average remnant polarization ( P r + – P r − )/2 of 12.69 μC/cm 2 and an average coercive field ( E + – E − )/2 of about 72.95 kV/cm under an applied field of 440 kV/cm.