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

doi:10.1063/1.4919059

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

Department of Materials Design and Innovation

University of Cambridge
Texas A&M University

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

40 Scopus citations

Abstract

Auxetic-like strain states were generated in self-assembled nanocomposite thin films of (Ba_0.6Sr_0.4TiO₃)_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.

Original language	English
Article number	062507
Journal	APL Materials
Volume	3
Issue number	6
DOIs	https://doi.org/10.1063/1.4919059
State	Published - Jun 1 2015

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

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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T1 - New strain states and radical property tuning of metal oxides using a nanocomposite thin film approach

AU - MacManus-Driscoll, Judith

AU - Suwardi, Ady

AU - Kursumovic, Ahmed

AU - Bi, Zhenxing

AU - Tsai, Chen Fong

AU - Wang, Haiyan

AU - Jia, Quanxi

AU - Lee, Oon Jew

PY - 2015/6/1

Y1 - 2015/6/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84928911746

U2 - 10.1063/1.4919059

DO - 10.1063/1.4919059

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VL - 3

JO - APL Materials

JF - APL Materials

IS - 6

M1 - 062507

ER -

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

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