Phase coexistence near a morphotropic phase boundary in Sm-doped BiFeO3 films

Emery, S. B., Cheng, C. -J., Kan, D., Rueckert, F. J., Alpay, S. P., Nagarajan, V., Takeuchi, I. and Wells, B. O. (2010) Phase coexistence near a morphotropic phase boundary in Sm-doped BiFeO3 films. Applied Physics Letters, 97 15: . doi:10.1063/1.3481065

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Author Emery, S. B.
Cheng, C. -J.
Kan, D.
Rueckert, F. J.
Alpay, S. P.
Nagarajan, V.
Takeuchi, I.
Wells, B. O.
Title Phase coexistence near a morphotropic phase boundary in Sm-doped BiFeO3 films
Formatted title
Phase coexistence near a morphotropic phase boundary in Sm-doped BiFeO3 films
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
1077-3118
Publication date 2010-10-11
Sub-type Article (original research)
DOI 10.1063/1.3481065
Open Access Status File (Publisher version)
Volume 97
Issue 15
Total pages 3
Place of publication Melville, NY, United States
Publisher AIP Publishing
Language eng
Formatted abstract
We have investigated heteroepitaxial films of Sm-doped BiFeO3 with a Sm-concentration near a morphotropic phase boundary. Our high-resolution synchrotron x-ray diffraction, carried out in a temperature range of 25 to 700 °C700 °C, reveals substantial phase coexistence as one changes temperature to crossover from a low-temperature PbZrO3-like phase to a high-temperature orthorhombic phase. We also examine changes due to strain for films exhibiting anisotropic misfit between film and substrate. Additionally, thicker films exhibit a substantial volume collapse associated with the structural transition that is suppressed in thinner films.
Keyword Thin film structure
Lattice constants
X-ray diffraction
Thin films
Thin film growth
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Medicine
 
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