DataVXPhilosophical Magazine LettersPaper
journal article·2018-06-03

Tunability of vortex-like patterns on 180o domain walls in ferroelectric PbTiO3

Y. X. Jiang, Y. J. Wang, D. Chen, Y. L. Zhu, X. L. Ma

Philosophical Magazine Letters· Volume 98· Issue 6
Publisher page
Source abstract

Abstract

Vortices and antivortices are topological defects that could be exploited in high-density storage devices. Using first-principles calculations, we found vortex-like patterns around charged domain walls that are closely related to the tilt angles of charged 180° domain walls relative to the [100] direction. With decreasing tilt angle, the vortex-like patterns evolve from independent antivortices to vortex-antivortex pairs, and then to the inexistence of vortex or antivortex defects. These findings might promote to understand the atomic scale structures of 180° domain walls and open a new pathway to manipulating vortex structures to obtain novel properties.
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Research context

Electronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, People’s Republic of China

State Key Lab of Advanced Processing and Recycling on Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, People’s Republic of China

Funding

National Natural Science Foundation of China · Frontier Science Key Programs of the Chinese Academy of Sciences · Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase)

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