TY - JOUR
T1 - Mechanical-force-induced non-local collective ferroelastic switching in epitaxial lead-titanate thin films
AU - Lu, Xiaoyan
AU - Chen, Zuhuang
AU - Cao, Ye
AU - Tang, Yunlong
AU - Xu, Ruijuan
AU - Saremi, Sahar
AU - Zhang, Zhan
AU - You, Lu
AU - Dong, Yongqi
AU - Das, Sujit
AU - Zhang, Hangbo
AU - Zheng, Limei
AU - Wu, Huaping
AU - Lv, Weiming
AU - Xie, Guoqiang
AU - Liu, Xingjun
AU - Li, Jiangyu
AU - Chen, Lang
AU - Chen, Long Qing
AU - Cao, Wenwu
AU - Martin, Lane W.
N1 - Funding Information:
The work in Harbin Institute of Technology is supported by the National Natural Science Foundation of China under the contract numbers 11872019 and 51802057, the National Key Research and Development Program of China (2018YFC0705601), and a startup grant from Harbin Institute of Technology, Shenzhen, under project number DD45001017. For work done at UC Berkeley, Z.H.C. acknowledges support from the Army Research Office under grant W911NF-14-1-0104. Y.C. acknowledges the support from the Faculty Science and Technology Acquisition and Retention (STARs) Program in the University of Texas System, the startup funding at the University of Texas at Arlington, and the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources that have contributed to the research results reported within this paper (URL: http://www.tacc.utexas.edu). R.X. acknowledges support from the National Science Foundation under grant DMR-1708615. S.S. acknowledges support from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award Number DE-SC-0012375 for development of ferroelectric thin films. S.D. acknowledges support from the Gordon and Betty Moore Foundation’s EPiQS Initiative, under grant GBMF5307. H.P.W acknowledges the supports from National Science Foundation of China (No. 11672269). J.Y.L. acknowledges support from National Key Research and Development Program of China (2016YFA0201001). L.C. acknowledges the supports from National Natural Science Foundation of China (No. U1532142), Natural Science Foundation of Guangdong Province of China (No. 2015A030310329) and the Science and Technology Research Items of Shenzhen (Grant Nos. JCYJ20160530185705301 and JCYJ20170412153325679). L.W.M. acknowledges support from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Contract No. DE-AC02-05-CH11231: Materials Project program KC23MP for the development of novel functional materials. The work at Penn State is supported by U.S. National Science Foundation grant under grant number DMR-1744213.
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Ferroelastic switching in ferroelectric/multiferroic oxides plays a crucial role in determining their dielectric, piezoelectric, and magnetoelectric properties. In thin films of these materials, however, substrate clamping is generally thought to limit the electric-field- or mechanical-force-driven responses to the local scale. Here, we report mechanical-force-induced large-area, non-local, collective ferroelastic domain switching in PbTiO3 epitaxial thin films by tuning the misfit-strain to be near a phase boundary wherein c/a and a1/a2 nanodomains coexist. Phenomenological models suggest that the collective, c-a-c-a ferroelastic switching arises from the small potential barrier between the degenerate domain structures, and the large anisotropy of a and c domains, which collectively generates much larger response and large-area domain propagation. Large-area, non-local response under small stimuli, unlike traditional local response to external field, provides an opportunity of unique response to local stimuli, which has potential for use in high-sensitivity pressure sensors and switches.
AB - Ferroelastic switching in ferroelectric/multiferroic oxides plays a crucial role in determining their dielectric, piezoelectric, and magnetoelectric properties. In thin films of these materials, however, substrate clamping is generally thought to limit the electric-field- or mechanical-force-driven responses to the local scale. Here, we report mechanical-force-induced large-area, non-local, collective ferroelastic domain switching in PbTiO3 epitaxial thin films by tuning the misfit-strain to be near a phase boundary wherein c/a and a1/a2 nanodomains coexist. Phenomenological models suggest that the collective, c-a-c-a ferroelastic switching arises from the small potential barrier between the degenerate domain structures, and the large anisotropy of a and c domains, which collectively generates much larger response and large-area domain propagation. Large-area, non-local response under small stimuli, unlike traditional local response to external field, provides an opportunity of unique response to local stimuli, which has potential for use in high-sensitivity pressure sensors and switches.
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U2 - 10.1038/s41467-019-11825-2
DO - 10.1038/s41467-019-11825-2
M3 - Article
C2 - 31477695
AN - SCOPUS:85071770504
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 3951
ER -