Combined effects of bilayer structure and ion substitutions on bismuth ferrite thin films

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3563573· OSTI ID:21538226

Jiagang, Wu ^[1]; Wang, John ^[2]; Dingquan, Xiao; Jianguo, Zhu ^[1]

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1. Department of Materials Science, Sichuan University, Chengdu 610064 (China)
2. Department of Materials Science and Engineering, National University of Singapore, Singapore 117574 (Singapore)

To understanding the combined effects of bilayer structure and ion substitutions on electrical behavior of BiFeO{sub 3} thin films, the Bi{sub 0.90}La{sub 0.10}Fe{sub 0.90}Zn{sub 0.10}O{sub 3}/Bi{sub 0.90}La{sub 0.10}Fe{sub 0.90}Sn{sub 0.10}O{sub 3} bilayers with different thickness ratios were fabricated on SrRuO{sub 3}/Pt/TiO{sub 2}/SiO{sub 2}/Si(100) substrates by radio frequency sputtering. Their dielectric constant increases and the fatigue endurance becomes better with increasing Bi{sub 0.90}La{sub 0.10}Fe{sub 0.90}Zn{sub 0.10}O{sub 3} thickness ratios. The bilayer with the thickness ratio of 210: 90 exhibits a high remanent polarization, and a better fatigue behavior is induced by higher driving electric fields and frequencies.

• OSTI ID: 21538226
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 7 Vol. 109; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH COMPOUNDS
CERAMICS
CHALCOGENIDES
CHARGED PARTICLES
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
DIMENSIONS
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
FERRIMAGNETIC MATERIALS
FERRITES
FERROELECTRIC MATERIALS
FILMS
IONS
IRON COMPOUNDS
LANTHANUM COMPOUNDS
LAYERS
MAGNETIC MATERIALS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PERMITTIVITY
PHYSICAL PROPERTIES
POLARIZATION
RARE EARTH COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SPUTTERING
SUBSTRATES
THICKNESS
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS