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Title: Synthesis and ferroelectric properties of epitaxial BiFeO{sub 3} thin films grown by sputtering.

Abstract

We have grown epitaxial BiFeO{sub 3} thin films with smooth surfaces on (001), (101), and (111) SrTiO{sub 3} substrates using sputtering. Four-circle x-ray diffraction and cross-sectional transmission electron microscopy show that the BiFeO{sub 3} thin films have rhombohedral symmetry although small monoclinic distortions have not been ruled out. Stripe ferroelectric domains oriented perpendicular to the substrate miscut direction and free of impurity phase are observed in BiFeO{sub 3} on high miscut (4{sup o}) (001) SrTiO{sub 3}, which attributes to a relatively high value of remanent polarization ({approx}71 {micro}C/cm{sup 2}). Films grown on low miscut (0.8{sup o}) SrTiO{sub 3} have a small amount of impure phase {alpha}Fe{sub 2}O{sub 3} which contributes to lower the polarization values ({approx}63 {micro}C/cm{sup 2}). The BiFeO{sub 3} films grown on (101) and (111) SrTiO{sub 3} exhibited remanent polarizations of 86 and 98 {micro}C/cm{sup 2}, respectively.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF); OUS
OSTI Identifier:
935627
Report Number(s):
ANL/MSD/JA-56649
Journal ID: ISSN 0003-6951; APPLAB; TRN: US200816%%637
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Appl. Phys. Lett.; Journal Volume: 88; Journal Issue: 2006
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; BISMUTH OXIDES; IRON OXIDES; EPITAXY; SPUTTERING; SUBSTRATES; SYNTHESIS; THIN FILMS; FERROELECTRIC MATERIALS; POLARIZATION

Citation Formats

Das, R. R., Kim, D. M., Baek, S. H., Zavaliche, F., Yang, S. Y., Ke, X., Streiffer, S. K., Rzchowski, M. S., Ramesh, R., Pan, X. Q., Eom, C. B., Univ. Wisconsin-Madison, Univ. Maryland, Univ. California at Berkeley, and Univ. Michigan. Synthesis and ferroelectric properties of epitaxial BiFeO{sub 3} thin films grown by sputtering.. United States: N. p., 2006. Web. doi:10.1063/1.2213347.
Das, R. R., Kim, D. M., Baek, S. H., Zavaliche, F., Yang, S. Y., Ke, X., Streiffer, S. K., Rzchowski, M. S., Ramesh, R., Pan, X. Q., Eom, C. B., Univ. Wisconsin-Madison, Univ. Maryland, Univ. California at Berkeley, & Univ. Michigan. Synthesis and ferroelectric properties of epitaxial BiFeO{sub 3} thin films grown by sputtering.. United States. doi:10.1063/1.2213347.
Das, R. R., Kim, D. M., Baek, S. H., Zavaliche, F., Yang, S. Y., Ke, X., Streiffer, S. K., Rzchowski, M. S., Ramesh, R., Pan, X. Q., Eom, C. B., Univ. Wisconsin-Madison, Univ. Maryland, Univ. California at Berkeley, and Univ. Michigan. Sun . "Synthesis and ferroelectric properties of epitaxial BiFeO{sub 3} thin films grown by sputtering.". United States. doi:10.1063/1.2213347.
@article{osti_935627,
title = {Synthesis and ferroelectric properties of epitaxial BiFeO{sub 3} thin films grown by sputtering.},
author = {Das, R. R. and Kim, D. M. and Baek, S. H. and Zavaliche, F. and Yang, S. Y. and Ke, X. and Streiffer, S. K. and Rzchowski, M. S. and Ramesh, R. and Pan, X. Q. and Eom, C. B. and Univ. Wisconsin-Madison and Univ. Maryland and Univ. California at Berkeley and Univ. Michigan},
abstractNote = {We have grown epitaxial BiFeO{sub 3} thin films with smooth surfaces on (001), (101), and (111) SrTiO{sub 3} substrates using sputtering. Four-circle x-ray diffraction and cross-sectional transmission electron microscopy show that the BiFeO{sub 3} thin films have rhombohedral symmetry although small monoclinic distortions have not been ruled out. Stripe ferroelectric domains oriented perpendicular to the substrate miscut direction and free of impurity phase are observed in BiFeO{sub 3} on high miscut (4{sup o}) (001) SrTiO{sub 3}, which attributes to a relatively high value of remanent polarization ({approx}71 {micro}C/cm{sup 2}). Films grown on low miscut (0.8{sup o}) SrTiO{sub 3} have a small amount of impure phase {alpha}Fe{sub 2}O{sub 3} which contributes to lower the polarization values ({approx}63 {micro}C/cm{sup 2}). The BiFeO{sub 3} films grown on (101) and (111) SrTiO{sub 3} exhibited remanent polarizations of 86 and 98 {micro}C/cm{sup 2}, respectively.},
doi = {10.1063/1.2213347},
journal = {Appl. Phys. Lett.},
number = 2006,
volume = 88,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}