Hopfions in chiral magnets

Sutcliffe, Paul

Abstract

A magnetic Hopfion is a three-dimensional topological soliton that consists of a closed loop of a twisted magnetic Skyrmion string. The results of numerical simulations are presented that demonstrate the existence of a stable Hopfion in a nanocylinder of a chiral magnet and an explicit analytic expression is shown to provide a reasonable approximation to the numerically computed Hopfion. A mechanism is suggested to create the Hopfion from a target Skyrmion by introducing an interfacial perpendicular magnetic anisotropy.

Citation

Sutcliffe, P. (2018). Hopfions in chiral magnets. Journal of Physics A: Mathematical and Theoretical, 51(37), Article 375401. https://doi.org/10.1088/1751-8121/aad521

• Journal Article Type: Article
• Acceptance Date: Jul 23, 2018
• Online Publication Date: Aug 8, 2018
• Publication Date: Aug 8, 2018
• Deposit Date: Aug 9, 2018
• Publicly Available Date: Aug 8, 2019
• Journal: Journal of Physics A: Mathematical and Theoretical
• Print ISSN: 1751-8113
• Electronic ISSN: 1751-8121
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 51
• Issue: 37
• Article Number: 375401
• DOI: https://doi.org/10.1088/1751-8121/aad521