Mangalam, R.V.K. ; Bhat, S.V. ; Iyo, A. ; Tanaka, Y. ; Sundaresan, A. ; Rao, C.N.R. (2008) Dielectric properties, thermal decomposition and related aspects of BiAlO3 Solid State Communications, 146 (11-12). pp. 435-437. ISSN 0038-1098
Full text not available from this repository.
Official URL: http://doi.org/10.1016/j.ssc.2008.03.039
Related URL: http://dx.doi.org/10.1016/j.ssc.2008.03.039
Abstract
BiAlO3, prepared under high-pressure and high-temperature conditions has a rhombohedral perovskite structure (R3c with a=5.3747(4) Å and c=13.391(1) Å) and decomposes around 550 ∘C to form the intermediate Bi2Al4O9 phase along with the Bi26−xAlxO40−y and Al2O3. Above 580 ∘C, the intermediate phase changes into the Bi26−xAlxO40−y. Dielectric measurements show an anomaly at the decomposition temperature and hysteresis at room temperature with a maximum polarization of ∼16 μC/cm2. Raman scattering measurements suggest softening of optical phonon modes, and are consistent with the occurrence of thermal decomposition of the rhombohedral phase to form the thermodynamically stable phase.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 120114 |
| Deposited On: | 23 Jun 2021 05:27 |
| Last Modified: | 23 Jun 2021 05:27 |
Repository Staff Only: item control page
