| Title |
Influence of niobium substitution on the properties of Pb2Fe2O5 thin films synthesized via reactive magnetron sputtering |
| Authors |
Beklešovas, Benas ; Stankus, Vytautas ; Iljinas, Aleksandras |
| DOI |
10.3390/coatings15080863 |
| Full Text |
|
| Is Part of |
Coatings.. Basel : MDPI. 2025, vol. 15, iss. 8, art. no. 863, p. 1-10.. ISSN 2079-6412 |
| Keywords [eng] |
ferroelectrics ; Pb2Fe2O5 ; multiferroic ; niobium-substituted ; reactive magnetron sputtering |
| Abstract [eng] |
Lead ferrite (Pb2Fe2O5) is a promising multiferroic material that exhibits both ferroelectric and magnetic properties at room temperature. This study investigates how substituting niobium and adjusting the synthesis temperature affect the structural, morphological, and ferroelectric properties of lead ferrite thin films deposited via reactive magnetron sputtering. Niobium-substituted PFO films (Pb2Fe2(1−x)Nb2xO5), where x corresponds to Nb2O5 contents of 3 wt.%, 5 wt.% and 10 wt.%, were prepared for this study, and denoted as PFONb3, PFONb5 and PFONb10, respectively. X-ray diffraction analysis confirmed the formation of Nb-substituted PFO phases, while polarization–electric field measurements demonstrated an increase in remnant polarization (Pr), with higher Nb content reaching a maximum Pr of 65 μC/cm2 at 10 wt.% Nb and a substrate temperature of 500 ◦C. Scanning electron microscopy and energy-dispersive spectroscopy revealed a uniform distribution of elements and a well-defined surface structure. These results highlight the need to fine tune synthesis parameters, such as temperature and substitution concentrations, to achieve optimal ferroelectric characteristics. |
| Published |
Basel : MDPI |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
