NDLI: Transport properties of Ba-doped BiFeO$_{3}$ multiferroic nanoparticles

Content Provider	Springer Nature Link
Author	El Desoky, M. M. Mostafa, M. M. Ayoub, M. S. Ahmed, M. A.
Copyright Year	2015
Abstract	Multiferroic nanoparticles of Bi$_{1−x }$Ba$_{ x }$FeO$_{3}$ (BiBaFeO$_{3}$); (x = 0.10, 0.15, 0.20 and 0.25 mol%) samples were prepared using conventional solid-state method. The nanostructural and transport properties of the prepared samples were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and electrical conductivity. XRD patterns show the formation of BiBaFeO$_{3}$ with single-phase rhombohedral-hexagonal structure. The particles sizes were found to be in the range 20–33 nm. SEM micrograph revealed the nanostructure consisting of small, randomly oriented and non-uniform grains. Dc conductivity shows that all samples are semiconductor and the maximum was found at x = 0.15 mol%. This increase of the conductivity can be attributed to the decrease in grain boundary scattering due to the reduction in crystallite size. The calculated activation energy for the multiferroic nanoparticles was found to be 0.413–0.929 eV. The conduction was confirmed to obey non-adiabatic small polaron hopping (SPH). The electron–phonon interaction coefficient (γ $_{ p }$) was calculated and found to be in the range of (12.79–27.21). The hopping carrier mobility varied from 1.85 × 10$^{−7}$ cm$^{2}$V$^{−1}$s$^{−1}$ to 8.01 × 10$^{−13}$ cm$^{2}$V$^{−1}$s$^{−1}$ at 418 K. The conductivity was primarily determined by hopping carrier mobility.
Starting Page	6793
Ending Page	6800
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	26
Issue Number	9
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2015-06-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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