| Autor: |
Li, Shan, Li, Jiaqi, Wang, Yilin, Yang, Mingdi, Huo, Chuanrui, Xu, Shuai, Chen, Xin, Li, Qiang, Miao, Jun, Guo, Er-Jia, Jin, Kuijuan, Gu, Lin, Zhang, Qinghua, Lin, Ting, Lin, Kun, Huang, Ling, Xing, Xianran |
| Zdroj: |
Inorganic Chemistry; August 2024, Vol. 63 Issue: 32 p15098-15104, 7p |
| Abstrakt: |
Interfacial strain engineering can induce structural transformation and introduce new physical properties into materials, which is an effective method to prepare new multifunctional materials. However, interfacial strain has a limited spatial impact size. For example, in 2D thin films, the critical thickness of biaxial strain is typically less than 20 nm, which is not conducive to the maintenance of a strained structure and properties in thick film materials. The construction of a 3D interface can solve this problem. The large lattice mismatch between the BaZrO3thin film and the substrate can induce the out-of-phase boundary (OPB) structure, which can extend along the thickness direction with the stacking of atoms. The lattice distortion at the OPB structure can provide a clamping effect for each layer of atoms, thus expanding the spatial influence range of biaxial strain. As a result, the uniform in-plane strain distribution and strain-induced ferroelectricity (Pr= 13 μC/cm2) are maintained along the thickness direction in BaZrO3films. |
| Databáze: |
Supplemental Index |
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