Year-end Sale % OFF 
Abstract
The Bi0.85Nd0.15FeO3, BiFe0.85Mn0.15O3, and Bi0.85Nd0.15Fe0.85Mn0.15O3 ferrites solid solutions were synthesized and their crystal structure, magnetic susceptibility, thermal expansion, electrical conductivity, thermo-EMF and dielectric properties were studied. It was found that Bi0.85Nd0.15FeO3 and BiFe0.85Mn0.15O3 had rhombohedral structure (space group R3c), but Bi0.85Nd0.15Fe0.85Mn0.15O3 one had orthorhombic structure (space group Pnma) and all the complex oxides studied were the antiferromagnetic semiconductors of p-type, which electrical conductivity values were larger than for unsubstituted bismuth ferrite BiFeO3, Neel temperature and thermo-EMF coefficient sharply decreased at partial substitution of iron by manganese and linear thermal expansion coefficient values varied within (10.0-13.4)·10 - 6 K -1 . The values of charge carriers transfer parameters in (Bi,Nd)(Fe,Mn)O3 phases were calculated.
Highlights
As a base for development of multiferroics of new generation which able to find use in a variety of devices of electronics, spintronics, etc., bismuth ferrite with perovskite structure BiFeO3 is considered [1], since this double oxide possesses high values of temperatures of antiferromagnetic and ferroelectric ordering [1, 2]
The disadvantage of BiFeO3 is the presence in it of an incommensurate spatially modulated structure of cycloid type, and it does not have a linear magnetoelectric effect, and possesses only considerably less intense quadratic one [1].The suppression of the spatially modulated structure, giving the possibility to obtain multiferroics with large linear magnetoelectric effect based on BiFeO3,can be achieved by the application of large magnetic fields, by production thin films based on the bismuth
Our results are in a good accordance to the literature data [13, 14], which claim that using solid-state reactions method the monophase samples of perovskite bismuth ferrite cannot be obtained practically, because due to the difficulties of transfer of bismuth oxide through the layer of product – BiFeO3 – the reaction
Summary
As a base for development of multiferroics of new generation which able to find use in a variety of devices of electronics, spintronics, etc., bismuth ferrite with perovskite structure BiFeO3 is considered [1], since this double oxide possesses high values of temperatures of antiferromagnetic (near 640K) and ferroelectric ordering (near 1100K) [1, 2]. The disadvantage of BiFeO3 is the presence in it of an incommensurate spatially modulated structure of cycloid type, and it does not have a linear magnetoelectric effect, and possesses only considerably less intense quadratic one [1].The suppression of the spatially modulated structure, giving the possibility to obtain multiferroics with large linear magnetoelectric effect based on BiFeO3,can be achieved by the application of large magnetic fields, by production thin films based on the bismuth
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
