Electric and Magnetic Properties of Sputter Deposited BiFeO3 Films
Joint Authors
Kourkoumelis, Nikolaos
Panagiotopoulos, I.
Siadou, N.
Brintakis, K.
Bakas, Thomas
Lappas, A.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-18
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Polycrystalline BiFeO3 films have been magnetron sputter deposited at room temperature and subsequently heat-treated ex situ at temperatures between 400 and 700°C.
The deposition was done in pure Ar atmosphere, as the use of oxygen-argon mixture was found to lead to nonstoichiometric films due to resputtering effects.
At a target-to-substrate distance d=2′′ the BiFeO3 structure can be obtained in larger range process gas pressures (2–7 mTorr) but the films do not show a specific texture.
At d=6′′ codeposition from BiFeO3 and Bi2O3 has been used.
Films sputtered at low rate tend to grow with the (001) texture of the pseudo-cubic BiFeO3 structure.
As the film structure does not depend on epitaxy similar results are obtained on different substrates.
A result of the volatility of Bi, Bi rich oxide phases occur after heat treatment at high temperatures.
A Bi2SiO5 impurity phase forms on the substrate side, and does not affect the properties of the main phase.
Despite the deposition on amorphous silicon oxide substrate weak ferromagnetism phenomena and displaced loops have been observed at low temperatures showing that their origin is not strain.
Ba, La, Ca, and Sr doping suppress the formation of impurity phases and leakage currents.
American Psychological Association (APA)
Siadou, N.& Panagiotopoulos, I.& Kourkoumelis, Nikolaos& Bakas, Thomas& Brintakis, K.& Lappas, A.. 2013. Electric and Magnetic Properties of Sputter Deposited BiFeO3 Films. Advances in Materials Science and Engineering،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-503821
Modern Language Association (MLA)
Siadou, N.…[et al.]. Electric and Magnetic Properties of Sputter Deposited BiFeO3 Films. Advances in Materials Science and Engineering No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-503821
American Medical Association (AMA)
Siadou, N.& Panagiotopoulos, I.& Kourkoumelis, Nikolaos& Bakas, Thomas& Brintakis, K.& Lappas, A.. Electric and Magnetic Properties of Sputter Deposited BiFeO3 Films. Advances in Materials Science and Engineering. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-503821
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-503821