Abstract
We present a simple technique to synthesize ultrafine nanoparticles directly from bulk multiferroic perovskitepowder. The starting materials, which were ceramic pellets of the nominal compositions Bi0.9Gd0.1-Fe1−xTixO3 (x = 0.00–0.20), were prepared initially by a solid state reaction technique, then ground intomicrometer-sized powders and mixed with isopropanol or water in an ultrasonic bath. The particle sizewas studied as a function of sonication time with transmission electron microscopic imaging and electrondiffraction that confirmed the formation of a large fraction of single-crystalline nanoparticles with a meansize of 11–13 nm. A significant improvement in the magnetic behavior of Bi0.9Gd0.1Fe1−xTixO3 nanoparticlescompared to their bulk counterparts was observed at room temperature. This sonication technique may beconsidered as a simple and promising route to prepare ultrafine nanoparticles for functional applications.
Original language | English |
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Article number | 14336 |
Journal | Nanoscale |
Volume | 6 |
Number of pages | 7 |
ISSN | 2040-3364 |
DOIs | |
Publication status | Published - 2014 |