| Autor: |
Saha, Subhadeep, Sreenu, Gomasu, Praveen, J Paul, Das, Dibakar |
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Feb2023, Vol. 34 Issue 5, p1-13, 13p |
| Abstrakt: |
Bi1-xNdxFeO3 (x = 0, 0.1, 0.15, 0.20) bulk ceramics were successfully synthesized by solid-state method and influence of Nd3+ substitution on the electrical properties of polycrystalline BiFeO3 (BFO) was studied at lower electric fields (≤ 2 kV/cm) and reported for the first time. With progressive Nd3+ substitution a change in the rhombohedral symmetry of BiFeO3 was observed and reduction in impurity phases was achieved. The average crystallize size varied from 37 to 24 nm with increasing Nd3+ concentration. The average grain size of the sintered Bi1−xNdxFeO3 ceramics also found to decrease from 28 µm to 4.74 µm with increasing Nd3+ concentration from x = 0 to 0.20. A significant decrease (4 orders of magnitude) in the leakage current density has been achieved from 6.36 × 10–4 A/cm2 for x = 0 to 4.03 × 10–8 A/cm2 for x = 0.20 at an electric field of 2 kV/cm with Nd3+ substitution, while the conduction mechanism was predominantly Ohmic in nature. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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