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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Comprehensive theoretical and experimental study of electrical transport mechanism on BiFeO3 multiferroic nanoparticles

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Author(s):
Ramirez, F. E. N. ; Marinho, Jr., E. ; Leao, C. R. ; Souza, J. A.
Total Authors: 4
Document type: Journal article
Source: Journal of Alloys and Compounds; v. 720, p. 47-53, OCT 5 2017.
Web of Science Citations: 3
Abstract

We have performed a comprehensive study of electrical properties at high temperatures of single-phase BiFeO3 nanoparticles. Our results revealed a strong dependence of electrical resistivity behavior and activation energy on thermal cycle due to adsorption/ desorption of water molecules. Ionic conductivity due to oxygen vacancies as well as H(+)ions should dominate the electronic current after the initial heating and cooling cycle explaining the change in the charge transport properties due to thermal, temperature, and atmosphere history. Electronic structure simulations indicated that the characteristics of the conductivity in the original sample is consistent with band-to-band transitions, expected in a material rich in oxygen. (C) 2017 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 16/09769-3 - Synthesis and Physical Properties Characterization of microtubes
Grantee:José Antonio Souza
Support Opportunities: Regular Research Grants
FAPESP's process: 10/18364-0 - Physical properties and critical phenomena in strong correlated systems.
Grantee:Fabian Enrique Nima Ramirez
Support Opportunities: Scholarships in Brazil - Doctorate