Mechanical-force-induced non-local collective ferroelastic switching in epitaxial lead-titanate thin films

Lu, Xiaoyan1; Chen, Zuhuang2; Cao, Ye3,4; Tang, Yunlong5; Xu, Ruijuan5; Saremi, Sahar5; Zhang, Zhan6; You, Lu7; Dong, Yongqi6; Das, Sujit5; Zhang, Hangbo1; Zheng, Limei8; Wu, Huaping9; Lv, Weiming8; Xie, Guoqiang2; Liu, Xingjun2; Li, Jiangyu10; Chen, Lang11; Chen, Long-Qing12; Cao, Wenwu8,13,14; Martin, Lane W.5,15

2019-09-02

10.1038/s41467-019-11825-2

Nature Communications   影响因子和分区

2041-1723

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 mechanicalforce-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 a(1)/a(2) 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.

SCI

英语

NI期刊

其他

U.S. National Science Foundation[DMR-1744213]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000483306100002

NATURE PUBLISHING GROUP

Web of Science

1.Harbin Inst Technol, Sch Civil Engn, Harbin 15000, Heilongjiang, Peoples R China
2.Harbin Inst Technol, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Univ Texas Arlington, Dept Mat Sci, Arlington, TX 76019 USA
4.Univ Texas Arlington, Dept Engn, Arlington, TX 76019 USA
5.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
6.Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA
7.Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
8.Harbin Inst Technol, Condensed Matter Sci & Technol Inst, Harbin 150080, Heilongjiang, Peoples R China
9.Zhejiang Univ Technol, Minist Educ & Zhejiang Prov, Key Lab E&M, Hangzhou 310014, Zhejiang, Peoples R China
10.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
11.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
12.Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
13.Penn State Univ, Dept Math, University Pk, PA 16802 USA
14.Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
15.Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA

Lu, Xiaoyan,Chen, Zuhuang,Cao, Ye,et al. Mechanical-force-induced non-local collective ferroelastic switching in epitaxial lead-titanate thin films[J]. Nature Communications,2019,10.

Lu, Xiaoyan.,Chen, Zuhuang.,Cao, Ye.,Tang, Yunlong.,Xu, Ruijuan.,...&Martin, Lane W..(2019).Mechanical-force-induced non-local collective ferroelastic switching in epitaxial lead-titanate thin films.Nature Communications,10.

Lu, Xiaoyan,et al."Mechanical-force-induced non-local collective ferroelastic switching in epitaxial lead-titanate thin films".Nature Communications 10(2019).