Abstract
Large-scale single-crystalline BaTi2O5 nanowires were synthesized using BaC2O4·H2O and TiO2 powders as precursors by a simple molten salt method. The as-synthesized BaTi2O5 nanowires were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The results show that the BaTi2O5 nanowires are single crystalline with the preferred growth direction of [011]. The phase evolution of the synthesis process has been investigated. Local piezoresponse force measurements indicate that the BaTi2O5 nanowires have switchable polarization at room temperature.
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