Electrical Properties Of Bismuth Ferrite

The gas sensing tests show that the sensor based on bi0 9ba0 1feo2 95 bbfo10 has high s.

Electrical properties of bismuth ferrite.

In this study nanocrystalline 18 28 nm perovskite like bismuth ferrite rare earth doped powders bi 0 9 re 0 1 feo 3 where re la blafo eu beufo and er berfo were obtained by microwave assisted modification of solution combustion synthesis scs the influence of high load la 3 eu 3 and er 3 doping on structural optical and electrical properties of bifeo 3 was. Bismuth ferrite bifeo3 is an inorganic chemical compound with a perovskite structure and an unusual compound of bismuth iron and oxygen bfo. Bismuth ferrite bifeo 3 also commonly referred to as bfo in materials science is an inorganic chemical compound with perovskite structure and one of the most promising multiferroic materials. It is one of the most promising lead free piezoelectric materials which exhibits multiferroic properties at room temperature.

We report a detailed characterization of the electrical properties of two bismuth ferrites bi 2 fe 4 o 9 and bi 25 feo 39 and conclude that under normal conditions of synthesis of bifeo 3 at high temperatures in atmospheres of either air or oxygen these other bismuth ferrite phases are unlikely to be the reason for any leakage conductivity. Bifeo 3 bismuth ferrite having multiferroic properties at room temperature is the most well known single phase multiferroic material which has been under extensive studies. The bismuth ferrite thin films need to shrink to the nanscale for use in various nanodevices in the future. Pure and ba substituted bismuth ferrite bifeo3 bfo powders were successfully synthesized via a sol gel method.

Here we report. The room temperature phase of bifeo3 is classed as rhombohedral belonging to the space group r3c. Considerable efforts have been stressed on the successful deposition of bismuth ferrite thin films with the desirable film structure and electrical properties for technological demands 1 5. Bifeo 3 is a lead free material with a high curie temperature t c 850 c and a giant remanent polarization p r 146 μc cm 2 and it is a promising material for high density ferroelectric random access memory the lattice structure of bifeo 3 crystal is rhombohedral perovskite which belongs to the r3c space group with unit cell parameters a r 5 364 å and α γ 0 6.

The effects of the ba substitution on the morphology gas sensing and electrical properties of bfo were studied.