Harness of room-temperature polar skyrmion bag in oxide superlattice

Linming Zhou, Mohit Tanwani, Peiran Tong, Pushpendra Gupta, Yongjun Wu (), Yuhui Huang, He Tian (), Sujit Das () and Zijian Hong ()
Additional contact information
Linming Zhou: Zhejiang University
Mohit Tanwani: Indian Institute of Science
Peiran Tong: Zhejiang University
Pushpendra Gupta: Indian Institute of Science
Yongjun Wu: Zhejiang University
Yuhui Huang: Zhejiang University
He Tian: Zhejiang University
Sujit Das: Indian Institute of Science
Zijian Hong: Zhejiang University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract Skyrmion bag is a higher-order skyrmion-based topological structure that can be used to reduce the risk of data loss in memory devices. It consists of an outer skyrmion wall and several inner skyrmions with opposite polarities. While skyrmion bags have been observed in ferromagnetic materials and liquid crystals, creating a polar skyrmion bag has proven challenging. Herein, we report the creation, evolution, and destruction of a polar skyrmion bag in a ferroelectric/dielectric oxide superlattice. The creation of a polar skyrmion bag is facilitated by applying an electric field pulse through a charged tip, which could be eliminated by changing the field direction. We also discover that the topological charge inside a polar skyrmion bag can be manipulated in situ by adjusting the magnitude of the applied potential. Through combined experimental observations and theoretical calculations, we have gained new insights into multipolar boundaries and identified promising prospects for future high-density, scalable, robust memory and low-loss nanoelectronics devices.

Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-64858-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-64858-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-64858-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().