Nature Communications (Apr 2021)

Creating polar antivortex in PbTiO3/SrTiO3 superlattice

  • Adeel Y. Abid,
  • Yuanwei Sun,
  • Xu Hou,
  • Congbing Tan,
  • Xiangli Zhong,
  • Ruixue Zhu,
  • Haoyun Chen,
  • Ke Qu,
  • Yuehui Li,
  • Mei Wu,
  • Jingmin Zhang,
  • Jinbin Wang,
  • Kaihui Liu,
  • Xuedong Bai,
  • Dapeng Yu,
  • Xiaoping Ouyang,
  • Jie Wang,
  • Jiangyu Li,
  • Peng Gao

DOI
https://doi.org/10.1038/s41467-021-22356-0
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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While the role of PbTiO3 in PbTiO3/SrTiO3 superlattices has been widely studied, little attention is paid to possible polar topologies in SrTiO3. Here, the authors create atomic-scale vortex–antivortex pairs in the superlattices, expanding the understanding of topological structures.