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Strain-induced effects in phase transitions in thin films of multiferroic BiFeO3 probed by optical second-harmonic generation

Published online by Cambridge University Press:  31 January 2011

M.S. Kartavtseva ,
O. Yu. Gorbenko ,
A.R. Kaul ,
T.V. Murzina ,
S.A. Savinov  and
O.A. Aktsipetrov
M.S. Kartavtseva
Affiliation:
Department of Chemistry, Moscow State University, 119992 Moscow, Russia
O. Yu. Gorbenko
Affiliation:
Department of Chemistry, Moscow State University, 119992 Moscow, Russia
A.R. Kaul
Affiliation:
Department of Chemistry, Moscow State University, 119992 Moscow, Russia
T.V. Murzina
Affiliation:
Department of Physics, Moscow State University, 119992 Moscow, Russia
S.A. Savinov
Affiliation:
Department of Physics, Moscow State University, 119992 Moscow, Russia
O.A. Aktsipetrov
Affiliation:
Department of Physics, Moscow State University, 119992 Moscow, Russia
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Abstract

Optical second-harmonic generation (SHG) was applied to study the ferroelectric and magnetic properties of strained epitaxial BiFeO3 films deposited on (001) SrTiO3 substrates by metal organic chemical vapor deposition. A strong interplay between the ferroelectric and magnetic subsystems of bismuth ferrite films results in the pronounced temperature dependence of the SHG intensity. The decrease of the critical temperature of the ferroelectric phase transition and the expansion of the nonlinear transient area near Néel temperature were observed for the strained BiFeO3 films.

Keywords

FerroelectricityMagnetic propertiesChemical vapor deposition (CVD) (deposition)
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 8 , August 2007 , pp. 2063 - 2067
Copyright
Copyright © Materials Research Society 2007

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References

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