Results 61 to 70 of about 9,811 (235)
Nuclear Physics B, 1990 We develop a (formal) quantization of the solitons of chiral SU(N) non-linear sigma models (skyrmions) in terms of euclidean-region functional integrals. Our method permits us to determine baryon number, spin and statistics of skyrmions directly from their euclidean correlation functions.
J. Froehlich, MARCHETTI, PIERALBERTO
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Journal of Mathematical Physics, 2003 In this article we aim to determine the baryon numbers at which the minimal energy Skyrmion has icosahedral symmetry. By comparing polyhedra which arise as minimal energy Skyrmions with the dual of polyhedra that minimize the energy of Coulomb charges on a sphere, we are led to conjecture a sequence of magic baryon numbers, B=7,17,37,67,97,…, at which ...
Battye, Richard +2 more
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Measuring the Hall Effect in Hysteretic Materials
Advanced Materials, EarlyView.The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya +6 more
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Skyrmion Pair Racetrack Utilizing Hall Motion
MagnetochemistryThe skyrmion racetrack is a promising concept for future information technology. The primary issues with skyrmion racetrack memory are now error codes and Hall motion. Here, we propose a skyrmion pair racetrack memory. The Oersted fields generated by the
Shan Qiu +5 more
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Modern Physics Letters B, 2015 Skyrmions are topological solitons that describe baryons within a nonlinear theory of pions. In holographic QCD, baryons correspond to topological solitons in a bulk theory with an extra spatial dimension. Thus, the three-dimensional Skyrmion lifts to a four-dimensional holographic Skyrmion in the bulk.
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Journal of Physics: Condensed Matter, 2019 Abstract We propose a method of determining the shape of a two-dimensional magnetic skyrmion, which can be parameterized as the position dependence of the orientation of the local magnetic moment, by using the expansion in terms of the eigenfunctions of the Schrödinger equation of a harmonic oscillator.
Ji-Chong Yang, Qing-Qing Mao, Yu Shi
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Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
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Skyrmion bag robustness in plasmonic bilayer and trilayer moiré superlattices
NanophotonicsTwistronics is studied intensively in twisted 2D heterostructures and its extension to trilayer moiré structures has proven beneficial for the tunability of unconventional correlated states and superconductivity in twisted trilayer graphene.
Schwab Julian +4 more
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Topology dependence of skyrmion Seebeck and skyrmion Nernst effect
Scientific Reports, 2022 We explore the dynamics of skyrmions with various topological charges induced by a temperature gradient in an ultra-thin insulating magnetic film. Combining atomistic spin simulations and analytical calculations we find a topology-dependent skyrmion ...
Markus Weißenhofer, Ulrich Nowak
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How a skyrmion can appear both massive and massless
SciPost Physics, 2022 When a magnetic skyrmion is modeled as a point particle, its dynamics depends on the precise definition of the skyrmion center. The guiding-center position, defined as the first moment of the skyrmion density, exhibits Thiele's massless dynamics ...
Xiaofan Wu, Oleg Tchernyshyov
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