Epitaxial growth of BiFeO3 films on SrRuO3/SrTiO3

Zhen Zheng Jiang; Zhao Guan; Nan Yang; Ping Hua Xiang; Rui Juan Qi; Rong Huang; Ping Xiong Yang; Ni Zhong; Chun Gang Duan

doi:10.1016/j.matchar.2017.07.009

Epitaxial growth of BiFeO₃ films on SrRuO₃/SrTiO₃

Zhen Zheng Jiang
, Zhao Guan
, Nan Yang
, Ping Hua Xiang^*
, Rui Juan Qi
, Rong Huang
, Ping Xiong Yang
, Ni Zhong
, Chun Gang Duan

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University

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

26 Scopus citations

Abstract

We have investigated the influence of growth parameters on the surface morphology of BiFeO₃ (BFO) thin films prepared by pulsed laser deposition on SrTiO₃ (001) substrates with SrRuO₃ buffer layers. High quality epitaxial BFO thin films are obtained by controlling the laser pulse energy (E_L), substrate temperature (T_S) and oxygen partial pressure (Po₂). It is found that the surface morphology is sensitive to both T_S and Po₂, and the root-mean-square roughness decreases initially and increases subsequently with increasing T_S or Po₂. Epitaxial BFO thin films with atomically smooth surface are successfully prepared in step flow growth mode at E_L = 100 mJ, T_S = 700 °C and Po₂ = 13 Pa. Using X-ray diffraction, high-resolution cross-sectional transmission electron microscopy and piezoelectric force microscopy, the crystallinity, epitaxy and ferroelectricity of the BFO thin films prepared in optimal growth conditions have been studied. A growth diagram is constructed to delineate the growth window of high quality epitaxial BFO films with step and terrace topography.

Original language	English
Pages (from-to)	217-223
Number of pages	7
Journal	Materials Characterization
Volume	131
DOIs	https://doi.org/10.1016/j.matchar.2017.07.009
State	Published - Sep 2017

Keywords

BiFeO
Epitaxial growth
Pulsed laser deposition (PLD)

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@article{4d891a2e951546e1bb7e64a0aa5f68b2,

title = "Epitaxial growth of BiFeO3 films on SrRuO3/SrTiO3",

abstract = "We have investigated the influence of growth parameters on the surface morphology of BiFeO3 (BFO) thin films prepared by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 buffer layers. High quality epitaxial BFO thin films are obtained by controlling the laser pulse energy (EL), substrate temperature (TS) and oxygen partial pressure (Po2). It is found that the surface morphology is sensitive to both TS and Po2, and the root-mean-square roughness decreases initially and increases subsequently with increasing TS or Po2. Epitaxial BFO thin films with atomically smooth surface are successfully prepared in step flow growth mode at EL = 100 mJ, TS = 700 °C and Po2 = 13 Pa. Using X-ray diffraction, high-resolution cross-sectional transmission electron microscopy and piezoelectric force microscopy, the crystallinity, epitaxy and ferroelectricity of the BFO thin films prepared in optimal growth conditions have been studied. A growth diagram is constructed to delineate the growth window of high quality epitaxial BFO films with step and terrace topography.",

keywords = "BiFeO, Epitaxial growth, Pulsed laser deposition (PLD)",

author = "Jiang, \{Zhen Zheng\} and Zhao Guan and Nan Yang and Xiang, \{Ping Hua\} and Qi, \{Rui Juan\} and Rong Huang and Yang, \{Ping Xiong\} and Ni Zhong and Duan, \{Chun Gang\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Inc.",

year = "2017",

month = sep,

doi = "10.1016/j.matchar.2017.07.009",

language = "英语",

volume = "131",

pages = "217--223",

journal = "Materials Characterization",

issn = "1044-5803",

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TY - JOUR

T1 - Epitaxial growth of BiFeO3 films on SrRuO3/SrTiO3

AU - Jiang, Zhen Zheng

AU - Guan, Zhao

AU - Yang, Nan

AU - Xiang, Ping Hua

AU - Qi, Rui Juan

AU - Huang, Rong

AU - Yang, Ping Xiong

AU - Zhong, Ni

AU - Duan, Chun Gang

PY - 2017/9

Y1 - 2017/9

N2 - We have investigated the influence of growth parameters on the surface morphology of BiFeO3 (BFO) thin films prepared by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 buffer layers. High quality epitaxial BFO thin films are obtained by controlling the laser pulse energy (EL), substrate temperature (TS) and oxygen partial pressure (Po2). It is found that the surface morphology is sensitive to both TS and Po2, and the root-mean-square roughness decreases initially and increases subsequently with increasing TS or Po2. Epitaxial BFO thin films with atomically smooth surface are successfully prepared in step flow growth mode at EL = 100 mJ, TS = 700 °C and Po2 = 13 Pa. Using X-ray diffraction, high-resolution cross-sectional transmission electron microscopy and piezoelectric force microscopy, the crystallinity, epitaxy and ferroelectricity of the BFO thin films prepared in optimal growth conditions have been studied. A growth diagram is constructed to delineate the growth window of high quality epitaxial BFO films with step and terrace topography.

AB - We have investigated the influence of growth parameters on the surface morphology of BiFeO3 (BFO) thin films prepared by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 buffer layers. High quality epitaxial BFO thin films are obtained by controlling the laser pulse energy (EL), substrate temperature (TS) and oxygen partial pressure (Po2). It is found that the surface morphology is sensitive to both TS and Po2, and the root-mean-square roughness decreases initially and increases subsequently with increasing TS or Po2. Epitaxial BFO thin films with atomically smooth surface are successfully prepared in step flow growth mode at EL = 100 mJ, TS = 700 °C and Po2 = 13 Pa. Using X-ray diffraction, high-resolution cross-sectional transmission electron microscopy and piezoelectric force microscopy, the crystallinity, epitaxy and ferroelectricity of the BFO thin films prepared in optimal growth conditions have been studied. A growth diagram is constructed to delineate the growth window of high quality epitaxial BFO films with step and terrace topography.

KW - BiFeO

KW - Epitaxial growth

KW - Pulsed laser deposition (PLD)

UR - https://www.scopus.com/pages/publications/85021889938

U2 - 10.1016/j.matchar.2017.07.009

DO - 10.1016/j.matchar.2017.07.009

M3 - 文章

AN - SCOPUS:85021889938

SN - 1044-5803

VL - 131

SP - 217

EP - 223

JO - Materials Characterization

JF - Materials Characterization

ER -

Epitaxial growth of BiFeO₃ films on SrRuO₃/SrTiO₃

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Keywords

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