Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
TL;DR: In this article, the conversion, duplication and merging of isolated skyrmions with different chirality and topology are demonstrated all in one system, and they also demonstrate the conversion of another form of a Skyrmion into another form, i.e., a bimeron.
read more
Abstract: Magnetic skyrmions, which are topological particle-like excitations in ferromagnets, have attracted a lot of attention recently. Skyrmionics is an attempt to use magnetic skyrmions as information carriers in next generation spintronic devices. Proposals of manipulations and operations of skyrmions are highly desired. Here, we show that the conversion, duplication and merging of isolated skyrmions with different chirality and topology are possible all in one system. We also demonstrate the conversion of a skyrmion into another form of a skyrmion, i.e., a bimeron. We design spin logic gates such as the AND and OR gates based on manipulations of skyrmions. These results provide important guidelines for utilizing the topology of nanoscale spin textures as information carriers in novel magnetic sensors and spin logic devices.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Challenges in identifying chiral spin textures via the topological Hall effect
TL;DR: A review of the use of Hall effect measurements to probe chiral spin textures can be found in this article , focusing on the SrRuO 3 as a model system, where the ambiguity between Hall effects due to topological sources has led to disagreement in the interpretation of experimental results and casts doubts on the effectiveness of these techniques for investigating chiral spyrmions.
Reversible writing/deleting of magnetic skyrmions through hydrogen adsorption/desorption
Gong Chen,Colin Ophus,Alberto Manuel Quintana,Hee Young Kwon,Changyeon Won,Haifeng Ding,Yizheng Wu,Andreas K. Schmid,Kai Liu +8 more
- 23 Jun 2021
TL;DR: In this article, the authors demonstrate the reversible field-free writing/deleting of skyrmions at room temperature, via hydrogen chemisorption/desorption on the surface of Ni and Co films.
Skyrmion-Based Ultra-Low Power Electric-Field-Controlled Reconfigurable (SUPER) Logic Gate
Zhizhong Zhang,Yuanzhi Zhu,Yue Zhang,Kun Zhang,Jiang Nan,Zhenyi Zheng,Youguang Zhang,Weisheng Zhao +7 more
TL;DR: In this paper, an FIM skyrmion-based ultra-low power electric-field-controlled reconfigurable (SUPER) logic gate is proposed, in which multiple logic operations can be carried out in parallel.
Tuning the Coexistence Regime of Incomplete and Tubular Skyrmions in Ferromagnetic/Ferrimagnetic/Ferromagnetic Trilayers.
Oguz Yildirim,Riccardo Tomasello,Yaoxuan Feng,Giovanni Carlotti,Silvia Tacchi,P. Mirzadeh Vaghefi,Anna Giordano,Tanmay Dutta,G. Finocchiaro,Hans J. Hug,Andrada-Oana Mandru +10 more
TL;DR: In this paper , the energy landscape of the two skyrmion types in such heterostructures was tuned by engineering the geometrical and material parameters of the individual layers. And the authors found that a fine adjustment of the ferromagnetic layer thickness, and thus its magnetic anisotropy, allowed the trilayer system to support either one of the three types or the coexistence of both and with varying densities.
Motion of Skyrmions in Well-Separated Two-Lane Racetracks
P. Lai,Guoping Zhao,F.J. Morvan,S. Q. Wu,N. Ran +4 more
- 02 May 2017
TL;DR: In this paper, a two-lane skyrmion-based two-dimensional magnetic racetrack structure is proposed, with a high-K (high magnetocrystalline anisotropy) middle lane.
References
Skyrmion Lattice in a Chiral Magnet
Sebastian Mühlbauer,B. Binz,F. Jonietz,Christian Pfleiderer,Achim Rosch,A. Neubauer,Robert Georgii,Peter Böni +7 more
TL;DR: This study experimentally establishes magnetic materials lacking inversion symmetry as an arena for new forms of crystalline order composed of topologically stable spin states in the chiral itinerant-electron magnet MnSi.
4.9K
Topological properties and dynamics of magnetic skyrmions
TL;DR: From this description, potential applications of skyrmions as information carriers in magnetic information storage and processing devices are envisaged.
4.1K
Real-space observation of a two-dimensional skyrmion crystal
X. Z. Yu,Yoshinori Onose,Naoya Kanazawa,Jin-Hong Park,Jung Hoon Han,Yoshio Matsui,Naoto Nagaosa,Yoshinori Tokura +7 more
TL;DR: Real-space imaging of a two-dimensional skyrmion lattice in a thin film of Fe0.5Co 0.5Si using Lorentz transmission electron microscopy reveals a controlled nanometre-scale spin topology, which may be useful in observing unconventional magneto-transport effects.
3.6K
Skyrmions on the track
TL;DR: Magnetic skyrmions are nanoscale spin configurations that hold promise as information carriers in ultradense memory and logic devices owing to the extremely low spin-polarized currents needed to move them.
3.3K
A Unified Field Theory of Mesons and Baryons
TL;DR: In this article, the structure of the particle source in the classical theory is calculated, and some qualitative features of the interactions between these particles and mesons are described, and the way in which a non-linear meson field theory of this type may contain its own sources, and how these may be idealised to point singularities, as in the conventional field theories of interacting linear systems, is formulated.
2.7K