DataVXAPL MaterialsPaper
journal article·2015-06Open access

New strain states and radical property tuning of metal oxides using a nanocomposite thin film approach

Judith MacManus-Driscoll, Ady Suwardi, Ahmed Kursumovic, Zhenxing Bi, Chen-Fong Tsai, Haiyan Wang, Quanxi Jia, Oon Jew Lee

APL Materials· Volume 3· Issue 6
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Source abstract

Abstract

Auxetic-like strain states were generated in self-assembled nanocomposite thin films of (Ba0.6Sr0.4TiO3)1−x − (Sm2O3)x(BSTO − SmO). A switch from auxetic-like to elastic-like strain behavior was observed for x > 0.50, when the SmO switched from being nanopillars in the BSTO matrix to being the matrix with BSTO nanopillars embedded in it. A simple model was adopted to explain how in-plane strain varies with x. At high x (0.75), strongly enhanced ferroelectric properties were obtained compared to pure BSTO films. The nanocomposite method represents a powerful new way to tune the properties of a wide range of strongly correlated metal oxides whose properties are very sensitive to strain.
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Research context

NanomaterialsElectronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies · Bone Tissue Engineering Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Device Materials Group, Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, United Kingdom

Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, USA

Material Science and Engineering Program, Texas A&M University, College Station, Texas 77843, USA

Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Funding

Center for Integrated Nanotechnologies · National Science Foundation (NSF) · European Research Council (ERC) · Laboratory Directed Research and Development (LDRD)

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