Frequency Dependent Electrical Properties of Ferroelectric Ba0.8Sr0.2TiO3 Thin Film
| Autor: | Ala’eddin A. SAIF, Zul Azhar ZAHID JAMAL, Zaliman SAULI, Prabakaran POOPALAN |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Medžiagotyra, Vol 17, Iss 2, Pp 186-190 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1392-1320 2029-7289 |
| DOI: | 10.5755/j01.ms.17.2.490 |
| Popis: | The frequency dependent electrical parameters, such as impedance, electric modulus, dielectric constant and AC conductivity for ferroelectric Ba0.8Sr0.2TiO3 thin film have been investigated within the range of 1 Hz and 106 Hz at room temperature. Z* plane shows two regions corresponding to the bulk mechanism and the distribution of the grain boundaries-electrodes process. M" versus frequency plot reveals a relaxation peak, which is not observed in the ε″ plot and it has been found that this peak is a non-Debye-type. The frequency dependent conductivity plot shows three regions of conduction processes, i. e., a low-frequency region due to DC conduction, a mid-frequency region due to translational hopping motions and a high-frequency region due to localized hopping and/or reorientational motion.http://dx.doi.org/10.5755/j01.ms.17.2.490 |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|