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Complete topological classification of solutions in SO(3) symmetric Ginzburg-Landau free energy has been performed and a new class of solutions in weak external magnetic field carrying two units of magnetic flux has been identified. These…

Superconductivity · Physics 2009-10-31 A. Knigavko , B. Rosenstein , Y. F. Chen

Magnetic skyrmions are localized nanometer-sized spin configurations with particle_like properties, which are envisioned to be used as bits in next_generation information technology. An essential step towards future skyrmion-based…

The physics of skyrmions, and in particular the issue of how to isolate and manipulate them individually, is a subject of major importance nowadays in the community of magnetism. In this article we present an in-depth extension of a study…

Statistical Mechanics · Physics 2024-02-29 F. A. Gómez Albarracín , H. D. Rosales , Masafumi Udagawa , P. Pujol , Ludovic D. C. Jaubert

Magnetic skyrmions are localized, topologically protected spin-structures that have been proposed for storing or processing information due to their intriguing dynamical and transport properties. Important in terms of applications is the…

Materials Science · Physics 2016-06-07 B. Dupé , G. Bihlmayer , S. Blügel , S. Heinze

Topological magnetic textures, characterized by integer topological charge $S$, are potential candidates in future magnetic logic and memory devices, due to their smaller size and expected low threshold current density for their motion. An…

We have developed a sensitive technique to probe the magnetic skyrmion phases and dynamics by employing the interfacial coupling effect in a magnetoelectric composite configuration. The study on a MnSi single crystal sample using this…

Materials Science · Physics 2021-09-29 Yisheng Chai , Peipei Lu , Haifeng Du , Jianxin Shen , Yinina Ma , Kun Zhai , Le Wang , Youguo Shi , Hang Li , Wenhong Wang , Young Sun

We report the study of the skyrmion state near the surface of Cu$_2$OSeO$_3$ using soft resonant elastic x-ray scattering (REXS) at the Cu $L_3$ edge. Within the lateral sampling area of $200 \times 200$ $\mu$m$^2$, we found a…

Materials Science · Physics 2016-06-29 S. L. Zhang , A. Bauer , H. Berger , C. Pfleiderer , G. van der Laan , T. Hesjedal

Skyrmions are spin-swirling textures hosting wonderful properties with potential implications in information technology. Such magnetic particles carry a magnetization, whose amplitude is crucial to establish them as robust magnetic bits,…

Materials Science · Physics 2023-12-12 Imara Lima Fernandes , Samir Lounis

Synthetic crystal lattices provide ideal environments for simulating and exploring the band structure of solid-state materials in clean and controlled experimental settings. Physical realisations have, so far, dominantly focused on…

Mesoscale and Nanoscale Physics · Physics 2020-10-12 L. Pickup , H. Sigurdsson , J. Ruostekoski , P. G. Lagoudakis

Magnetic skyrmions are nanometric swirling spin textures that exhibit remarkable stability at finite temperatures, making them promising candidates for spintronic applications. Achieving controllable stability and transitions between…

Skyrmions, topologically protected vortex-like nanometric spin textures in magnets, have been attracting increasing attention for emergent electromagnetic responses and possible technological applications for spintronics. In particular,…

Mesoscale and Nanoscale Physics · Physics 2015-07-03 Y. Tokunaga , X. Z. Yu , J. S. White , H. M. Rønnow , D. Morikawa , Y. Taguchi , Y. Tokura

We introduce a new class of isolated magnetic skyrmions emerging within tilted ferromagnetic phases of polar magnets with easy-plane anisotropy. The asymmetric magnetic structure of these skyrmions is associated with an intricate pattern of…

Mesoscale and Nanoscale Physics · Physics 2017-07-26 A. O. Leonov , I. Kézsmárki

It is common for the local inversion symmetry to break in crystals, even though the whole crystal has global inversion symmetry. This local inversion symmetry breaking allows for a local Dzyaloshinsky-Moriya interaction (DMI) in magnetic…

Materials Science · Physics 2024-05-17 Shi-Zeng Lin

Magnetic skyrmions are quasiparticles with non-trivial topology, envisioned to play a key role in next-generation data technology while simultaneously attracting fundamental research interest due to their emerging topological charge. In…

We present the phase diagram of magnetic states for films of isotropic chiral magnets calculated as function of applied magnetic field and thickness of the film. We have found a novel magnetic state driven by the natural confinement of the…

Strongly Correlated Electrons · Physics 2016-06-14 F. N. Rybakov , A. B. Borisov , S. Blügel , N. S. Kiselev

We study two-body interactions of magnetic skyrmions on the plane and apply them to a (mostly) analytic description of a skyrmion lattice. This is done in the context of the solvable line, a particular choice of a potential for magnetic…

Mesoscale and Nanoscale Physics · Physics 2021-03-17 Calum Ross , Norisuke Sakai , Muneto Nitta

In bulk helimagnets, the presence of magnetic skyrmion lattices is always accompanied by a periodic stress field due to the intrinsic magnetoelastic coupling. The release of this nontrivial stress field at the surface causes a periodic…

Materials Science · Physics 2018-06-13 Xuejin Wan , Yangfan Hu , Biao Wang

We report comprehensive Monte-Carlo studies of the melting of skyrmion lattices in systems of small, medium, and large sizes with the number of skyrmions ranging from $10^{3}$ to over $10^{5}$. Large systems exhibit hysteresis similar to…

Mesoscale and Nanoscale Physics · Physics 2025-02-14 Dmitry A. Garanin , Jorge F. Soriano , Eugene M. Chudnovsky

Skyrmions are topologically protected field configurations with particle-like properties that play important roles in various fields of science. Recently, skyrmions have been directly observed in chiral magnets. Here, we investigate the…

Strongly Correlated Electrons · Physics 2013-08-15 R. L. Silva , L. D. Secchin , W. A. Moura-Melo , A. R. Pereira , R. L. Stamps

Magnetic skyrmions are emerging as promising candidates for next-generation information technologies, while the realization of scalable skyrmion lattices with tailored configurations is essential for advancing fundamental skyrmion physics…