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; Tom Wu; Junling Wang; Chen Gao; Thirumany Sritharan; Lang Chen

doi:10.1063/1.3525378

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

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 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 M_C, 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 M_A 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 language	English (US)
Article number	242903
Journal	Applied Physics Letters
Volume	97
Issue number	24
DOIs	https://doi.org/10.1063/1.3525378
State	Published - Dec 13 2010
Externally published	Yes

Bibliographical note

Funding Information:
L.C. acknowledges the support from Nanyang Technological University and Ministry of Education of Singapore under Project No. AcRF RG 21/07 and ARC 16/08. The authors thank beamline BL14B1 (SSRF) for providing the beam time.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3525378

Cite this

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title = "Low symmetry monoclinic MC phase in epitaxial BiFeO3 thin films on LaSrAlO4 substrates",

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.",

author = "Zuhuang Chen and Zhenlin Luo and Yajun Qi and Ping Yang and Shuxiang Wu and Chuanwei Huang and Tom Wu and Junling Wang and Chen Gao and Thirumany Sritharan and Lang Chen",

note = "Funding Information: L.C. acknowledges the support from Nanyang Technological University and Ministry of Education of Singapore under Project No. AcRF RG 21/07 and ARC 16/08. The authors thank beamline BL14B1 (SSRF) for providing the beam time.",

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doi = "10.1063/1.3525378",

language = "English (US)",

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T1 - Low symmetry monoclinic MC phase in epitaxial BiFeO3 thin films on LaSrAlO4 substrates

AU - Chen, Zuhuang

AU - Luo, Zhenlin

AU - Qi, Yajun

AU - Yang, Ping

AU - Wu, Shuxiang

AU - Huang, Chuanwei

AU - Wu, Tom

AU - Wang, Junling

AU - Gao, Chen

AU - Sritharan, Thirumany

AU - Chen, Lang

N1 - Funding Information: L.C. acknowledges the support from Nanyang Technological University and Ministry of Education of Singapore under Project No. AcRF RG 21/07 and ARC 16/08. The authors thank beamline BL14B1 (SSRF) for providing the beam time.

PY - 2010/12/13

Y1 - 2010/12/13

N2 - 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.

AB - 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.

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