نتایج جستجو برای: barium strontium titanate ba1
تعداد نتایج: 17160 فیلتر نتایج به سال:
Barium strontium titanate thin films are being developed as capacitors in dynamic random access memories. These films, grown on silicon substrates, are under tensile residual stress. By a converse electrostrictive effect, the in-plane tensile stress reduces the capacitance in the thickness direction of the film. We measured the substrate curvature change upon the removal of the film, and found ...
Modern technology asks for thin films of sustainable piezoelectrics, whereas electro-mechanical properties such are poorly explored and controlled. Here, dynamic quasi-static polarization, dielectric, piezoelectric responses were experimentally studied in thin-film stacks barium titanate sandwiched between electrodes grown on top strontium substrate. Accurate characterization was secured by usi...
Multiferroicity can be induced in strontium titanate by applying biaxial strain. Using optical second harmonic generation, we report a transition from 4/mmm to the ferroelectric mm2 phase, followed by a transition to a ferroelastic-ferroelectric mm2 phase in a strontium titanate thin film. Piezoelectric force microscopy is used to study ferroelectric domain switching. Second harmonic generation...
Chemical solution deposition (CSD) provides a low-cost, versatile approach for processing of thin and ultrathin ferroelectric films, as well as short and high aspect ratio ferroelectric nanostructures. This review discusses the state of the art in the processing of ferroelectric oxide thin films and nanostructures by CSD, with special emphasis on nucleation and growth phenomena. The effects of ...
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