Abstract
The dielectric properties and the voltage tunability of SrBi 2Ta2O9 thin films in the low temperature range of 10-300 K, were investigated. The crystallographic structure of the SBT thin films was characterized by X-ray diffraction (XRD) and the microstructure of the films was observed by atomic force microscopy (AFM). The origin of temperature effect of tunability may arise from switchable polarization that are frozen at low temperature which suppress magnitude of capacitance peaks. The results show that SBT films are promising materials for application in electrically tunable microwave devices.
| Original language | English |
|---|---|
| Pages (from-to) | 6329-6331 |
| Number of pages | 3 |
| Journal | Journal of Materials Science |
| Volume | 40 |
| Issue number | 23 |
| DOIs | |
| State | Published - Dec 2005 |