具有不同偶极子构型的 PbTiO_{3}/SrTiO_{3} 多层膜中的拓扑缺陷。

Topological Defects with Distinct Dipole Configurations in PbTiO_{3}/SrTiO_{3} Multilayer Films.

机构信息

School of Electronic and Information Engineering and State Key Laboratory for Mechanical Behaviour of Materials, Xi'an Jiaotong University, Xi'an 710049, China.

Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA.

出版信息

Phys Rev Lett. 2018 Apr 27;120(17):177601. doi: 10.1103/PhysRevLett.120.177601.

DOI:10.1103/PhysRevLett.120.177601

PMID:29756809

Abstract

Distinct and novel features of nanometric electric topological defects, including dipole waves and dipole disclinations, are presently revealed in the PbTiO_{3} layers of PbTiO_{3}/SrTiO_{3} multilayer films by means of quantitative high-resolution scanning transmission electron microscopy. These original dipole configurations are confirmed and explained by atomistic simulations and have the potential to act as functional elements in future electronics.

摘要

通过定量高分辨率扫描透射电子显微镜，在 PbTiO3/SrTiO3 多层薄膜的 PbTiO3 层中发现了纳米电拓扑缺陷的独特新颖特征，包括偶极波和偶极畴。这些原始的偶极构型通过原子模拟得到了证实和解释，有望成为未来电子学中的功能元件。