Abstract
Monodispersed strontium titanate nanoparticles were prepared and studied in detail. It is found that ∼10-nm as-prepared stoichiometric nanoparticles are in a polar structural state (possibly with ferroelectric properties) over a broad temperature range. A tetragonal structure, with possible reduction of the electronic hybridization, is found as the particle size is reduced. In the 10-nm particles, no change in the local Ti-off centering is seen between 20 and 300-K. The results indicate that nanoscale motifs of SrTiO3 may be utilized in data storage as assembled nano-particle arrays in applications where chemical stability, temperature stability, and low toxicity are critical issues.
Original language | English (US) |
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Article number | 091901 |
Journal | Applied Physics Letters |
Volume | 105 |
Issue number | 9 |
DOIs | |
State | Published - Sep 1 2014 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)