Low symmetry monoclinic MC phase in epitaxial BiFeO3 thin films on LaSrAlO4 substrates

Zuhuang Chen*, Zhenlin Luo, Yajun Qi, Ping Yang, Shuxiang Wu, Chuanwei Huang, Tao Wu, Junling Wang, Chen Gao, Thirumany Sritharan, Lang Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

We reported that the tetragonal-like phase identified in strained epitaxial BiFeO3 films on a (001) LaSrAlO4 single crystal substrates is monoclinic MC, based on high resolution synchrotron x-ray studies and piezoresponse force microscopy measurements. This M C phase has different symmetry with the rhombohedral-like monoclinic MA phase found in BiFeO3 films grown on low mismatch SrTiO3 substrates. Transmission electron microscopy revealed that the films on LaSrAlO4 substrates have a high crystalline quality and coherent interface.

Original languageEnglish (US)
Article number242903
JournalApplied Physics Letters
Volume97
Issue number24
DOIs
StatePublished - Dec 13 2010

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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