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Choi, Kyoung Jin
Energy Conversion Materials (EcoMAT) Lab
Research Interests
  • Solar cells, thermoelectrics, piezoelectric

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Enhancement of ferroelectricity in strained BaTiO3 thin films

Cited 681 times inthomson ciCited 647 times inthomson ci
Title
Enhancement of ferroelectricity in strained BaTiO3 thin films
Author
Choi, Kyoung JinBiegalski, MLi, YLSharan, ASchubert, JUecker, RReiche, PChen, YBPan, XQGopalan, VChen, LQSchlom, DGEom, CB
Keywords
ELECTRICAL-PROPERTIES; THICKNESS DEPENDENCE; HETEROSTRUCTURES; SUPERLATTICES; POLARIZATION; MULTILAYERS; TEMPERATURE; TRANSITION; DEFECTS
Issue Date
200411
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE, v.306, no.5698, pp.1005 - 1009
Abstract
Biaxial compressive strain has been used to markedly enhance the ferroelectric properties of BaTiO3 thin films. This strain, imposed by coherent epitaxy, can result in a ferroelectric transition temperature nearly 500degreesC higher and a remanent polarization at least 250% higher than bulk BaTiO3 single crystals. This work demonstrates a route to a lead-free ferroelectric for nonvolatile memories and electro-optic devices.
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DOI
http://dx.doi.org/10.1126/science.1103218
ISSN
0036-8075
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