Voltage-Driven Flexible Skyrmioniums for High-Speed Transport and Reversible Logic in Discrete Electrode Nanowires

Abstract

Magnetic skyrmionium, a composite spin texture formed by merging two topologically distinct skyrmions, is a promising information carrier for high-speed and high-density spintronic devices. Although spin current is a common driving force for skyrmionium dynamics, it can induce Joule heating and compromise device stability. To address this limitation, we investigate a voltage-driven approach to propel skyrmioniums using discrete electrodes. By eliminating Joule heating, our method enables a maximum skyrmionium speed of 101\,m/s. We further establish a theoretical framework for flexible skyrmionium, incorporating its deformation into the Thiele equation to more accurately capture the system’s dynamics. Leveraging the precise control offered by voltage gates and the pinning effect, we also design three skyrmionium-based logic gates—including INV/COPY and Fredkin gates—to showcase the practical potential of skyrmionium in logic operations. Our findings not only open a novel pathway for developing advanced spintronic devices but also underscore the reliability of voltage-driven skyrmionium as a new perspective for studying skyrmionium dynamics.

Supplementary files

Transparent peer review

To support increased transparency, we offer authors the option to publish the peer review history alongside their article.

View this article’s peer review history

Article information

Article type
Paper
Submitted
22 Apr 2025
Accepted
30 Jun 2025
First published
04 Jul 2025

Nanoscale, 2025, Accepted Manuscript

Voltage-Driven Flexible Skyrmioniums for High-Speed Transport and Reversible Logic in Discrete Electrode Nanowires

L. Wang, Z. Yu, Q. Liu, L. Xiong and R. Xiong, Nanoscale, 2025, Accepted Manuscript , DOI: 10.1039/D5NR01629K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements