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相关论文: Imprinting of skyrmions and bimerons in an antifer…

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In spin-orbit coupled crystals, symmetries can protect multifold degeneracies with large Chern numbers and Brillouin zone spanning topological surface states. In this work, we explore the extent to which the nontrivial topology of chiral…

介观与纳米尺度物理 · 物理学 2022-12-14 Mao Lin , Iñigo Robredo , Niels B. M. Schröter , Claudia Felser , Maia G. Vergniory , Barry Bradlyn

Topological spin textures can be found in both two-dimensional and three-dimensional nanostructures, which are of great importance to advanced spintronic applications. Here we report the current-induced skyrmion tube dynamics in…

介观与纳米尺度物理 · 物理学 2021-05-11 Jing Xia , Xichao Zhang , Kai-Yu Mak , Motohiko Ezawa , Oleg A. Tretiakov , Yan Zhou , Guoping Zhao , Xiaoxi Liu

We describe the dynamics of magnetic skyrmions in synthetic antiferromagnets (SAF), with a finite interlayer coupling. Due to the opposite gyrovector of the skyrmions in the two SAF layers, the coupled skyrmions reach a stationary regime…

材料科学 · 物理学 2022-12-06 Sujit Panigrahy , Sougata Mallick , Joao Sampaio , Stanislas Rohart

Magnetic skyrmions are particle-like topological excitations recently discovered in chiral magnets. Their small size, topological protection and the ease with which they can be manipulated by electric currents generated much interest in…

介观与纳米尺度物理 · 物理学 2017-04-05 A. O. Leonov , M. Mostovoy

Magnetic skyrmions are promising candidates for the next generation of spintronic devices due to their small size and topologically protected structure. One challenge for using these magnetic states in applications lies on controlling the…

介观与纳米尺度物理 · 物理学 2018-10-19 J. Brandão , D. A. Dugato , R. L. Seeger , J. C. Denardin , T. J. A. Mori , J. C. Cezar

Nanoelectromangetomechanical systems (NEMMS) open up a new path for the development of high speed autonomous nanoresonators and signal generators that could be used as actuators, for information processing, as elements of quantum computers…

介观与纳米尺度物理 · 物理学 2015-06-04 Helen V. Gomonay , Svitlana V. Kondovych , Vadim M. Loktev

Magnetic skyrmions, topologically stable spin textures, have attracted significant interest due to their potential applications in information storage and processing. They are typically stabilized by the Dzyaloshinskii-Moriya interaction in…

其他凝聚态物理 · 物理学 2026-01-05 A. Vela Wac , F. A. Gómez Albarracín , D. C. Cabra

Magnetic skyrmions are topologically nontrivial spin configurations that possess particle-like properties. Earlier research was mainly focused on a specific type of skyrmion with topological charge Q = -1. However, theoretical analyses of…

Since the 1950s Heisenberg and others have attempted to explain the appearance of countable particles in quantum field theory in terms of stable localized field configurations. As an exception Skyrme's model succeeded to describe nuclear…

统计力学 · 物理学 2009-11-11 U. K. Roessler , A. N. Bogdanov , C. Pfleiderer

Recent developments in the magnetization dynamics in spin textures, particularly skyrmions, offer promising new directions for magnetic storage technologies and spintronics. Skyrmions, characterized by their topological protection and…

材料科学 · 物理学 2024-08-21 Satadeep Bhattacharjee , Seung-Cheol Lee

Magnetic bimerons are potential information carriers in spintronic devices. Bimerons, topologically equivalent to skyrmions, manifest in chiral magnetic systems with in-plane magnetization due to anisotropies or external magnetic fields.…

Topological protection precludes a continuous deformation between topologically inequivalent configurations in a continuum. Motivated by this concept, magnetic skyrmions, topologically nontrivial spin textures, are expected to exhibit the…

Antiferromagnets (AFMs) exhibit intrinsic magnetization when the order parameter spatially varies. This intrinsic spin is present even at equilibrium and can be interpreted as a twisting of the homogeneous AFM into a state with a finite…

介观与纳米尺度物理 · 物理学 2016-03-18 Erlend G. Tveten , Tristan Müller , Jacob Linder , Arne Brataas

In the present research, we demonstrate the usage of plasmonic effects in thin film structures to control magnetic topological textures, specifically skyrmions and skyrmioniums. We investigate numerically the generation and alteration of…

应用物理 · 物理学 2024-03-13 W. Al Saidi , R. Sbiaa , Y. Dusch , N. Tiercelin

Motivated by a recent magnetization reversal experiment on a TbFeCo thin film, we study a topological excitation in the anisotropic nonlinear sigma model together with the Zeeman and magnetic dipole-dipole interactions. Dipole-dipole…

强关联电子 · 物理学 2011-03-22 Motohiko Ezawa

Skyrmions are magnetic excitations that are potentially ultrasmall and topologically protected, making them interesting for high-density all-electronic ultrafast storage applications. While recent experiments have confirmed the existence of…

介观与纳米尺度物理 · 物理学 2023-07-19 Yunkun Xie , Jianhua Ma , Hamed Vakilitaleghani , Yaohua Tan , Avik W. Ghosh

Skyrmions in ultrathin ferromagnetic metal (FM)/heavy metal (HM) multilayer systems produced by conventional sputtering methods have recently generated huge interest due to their applications in the field of spintronics. The sandwich…

Magnetic skyrmions are stable topological solitons with complex non-coplanar spin structures. Their nanoscopic size and the low electric currents required to initiate and control their motion has opened a new field of research, skyrmionics,…

Two-dimensional (2D) multiferroic materials with coexisting ferroelectricity and ferromagnetism have garnered substantial attention for their intriguing physical properties and diverse promising applications in spintronics. For example,…

材料科学 · 物理学 2024-02-27 Zuxin Fu , Kuanrong Hao , Min Guo , Jingjing He , Xiaohong Yan , Yangbo Zhou , Lei Shen , Jiaren Yuan

Polarized Neutron Reflectometry and magnetometry measurements have been used to obtain a comprehensive picture of the magnetic structure of a series of La{2/3}Sr{1/3}MnO{3}/Pr{2/3}Ca{1/3}MnO{3} (LSMO/PCMO) superlattices, with varying…

强关联电子 · 物理学 2009-11-13 D. Niebieskikwiat , L. E. Hueso , J. A. Borchers , N. D. Mathur , M. B. Salamon
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