Band gap and Schottky barrier heights of multiferroic BiFeO3

Clark, S.J.; Robertson, J.

doi:10.1063/1.2716868

Band gap and Schottky barrier heights of multiferroic BiFeO3

Clark, S.J.; Robertson, J.

Authors

Professor Stewart Clark s.j.clark@durham.ac.uk
Professor

J. Robertson

Abstract

BiFeO3 is an interesting multiferroic oxide and a potentially important Pb-free ferroelectric. However, its applications can be limited by large leakage currents. Its band gap is calculated by the density-functional based screened exchange method to be 2.8eV, similar to experiment. The Schottky barrier height on Pt or SrRuO3 is calculated in the metal induced gap state model to be over 0.9eV. Thus, its leakage is not intrinsic.

Citation

Clark, S., & Robertson, J. (2007). Band gap and Schottky barrier heights of multiferroic BiFeO3. Applied Physics Letters, 90(13), Article 132903. https://doi.org/10.1063/1.2716868

Journal Article Type	Article
Acceptance Date	Feb 20, 2007
Publication Date	Mar 26, 2007
Deposit Date	Jan 31, 2012
Publicly Available Date	Aug 18, 2015
Journal	Applied Physics Letters
Print ISSN	0003-6951
Electronic ISSN	1077-3118
Publisher	American Institute of Physics
Peer Reviewed	Peer Reviewed
Volume	90
Issue	13
Article Number	132903
DOI	https://doi.org/10.1063/1.2716868

Files

Published Journal Article (635 Kb)
PDF

Copyright Statement
© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 90, 132903 (2007) and may be found at http://dx.doi.org/10.1063/1.2716868