Results 31 to 40 of about 5,330 (203)

A Unified Approach to High Density: Pion Fluctuations in Skyrmion Matter [PDF]

open access: yes, 2003
As the first in a series of systematic work on dense hadronic matter, we study the properties of the pion in dense medium using Skyrme's effective Lagrangian as a unified theory of the hadronic interactions applicable in the large $N_c$ limit.
Bernard   +42 more
core   +4 more sources

Spin–orbit torque driven skyrmion motion under unconventional spin Hall effect

open access: yesNew Journal of Physics, 2022
The effective control of skyrmion motion is a critical aspect for realizing skyrmion-based devices. Among the potential directions, the use of current induced spin–orbit torque (SOT) is energetically efficient. However, the conventional heavy metals with
Yang Zhao   +8 more
doaj   +1 more source

A Theory of Skyrmion Size in Skyrmion Crystals

open access: yes, 2021
Abstract A magnetic skyrmion is a topological object that can exist as a solitary embedded in the vast ferromagnetic phase, or coexists with a group of its "siblings" in various stripy phases as well as skyrmion crystals (SkXs). Isolated skyrmions and skyrmions in an SkX are circular while a skyrmion in other phases is a stripe of various forms.
X. R. Wang   +3 more
openaire   +1 more source

Bubble and Skyrmion Crystals in Frustrated Magnets with Easy-Axis Anisotropy [PDF]

open access: yes, 2016
We clarify the conditions for the emergence of multiple-${\bf Q}$ structures out of lattice and easy-axis spin anisotropy in frustrated magnets. By considering magnets whose exchange interaction has multiple global minima in momentum space, we find that ...
Batista, Cristian D.   +2 more
core   +2 more sources

Interfacial phase frustration stabilizes unconventional skyrmion crystals

open access: yesnpj Quantum Materials, 2022
Chiral magnetic phases with an unconventional topological twist in the magnetization are of huge interest due to their potential in spintronics applications.
Narayan Mohanta, Elbio Dagotto
doaj   +1 more source

Sculpting liquid crystal skyrmions with external flows

open access: yesPhysical Review Research, 2023
We investigate, using experiments and numerical simulations, the distortions and the alignment of skyrmions in liquid crystal under external flows for a range of average flow velocities.
Rodrigo C. V. Coelho   +4 more
doaj   +1 more source

Blue Phase III: Topological Fluid of Skyrmions

open access: yesPhysical Review X, 2022
Skyrmions are topologically protected, vortexlike formations of a field that cannot be removed by any smooth transformation and emerge in a range of fundamentally different, either quantum or classical systems, from spin textures to chiral ferromagnets ...
J. Pišljar   +11 more
doaj   +1 more source

Zoology of Multiple‐Q Spin Textures in a Centrosymmetric Tetragonal Magnet with Itinerant Electrons

open access: yesAdvanced Science, 2022
Magnetic skyrmion is a topologically stable particle‐like swirling spin texture potentially suitable for high‐density information bit, which was first observed in noncentrosymmetric magnets with Dzyaloshinskii–Moriya interaction.
Nguyen Duy Khanh   +11 more
doaj   +1 more source

Superfluid and magnetic states of an ultracold Bose gas with synthetic three-dimensional spin-orbit coupling in an optical lattice [PDF]

open access: yes, 2013
We study ultracold bosonic atoms with the synthetic three-dimensional spin-orbit (SO) coupling in a cubic optical lattice. In the superfluidity phase, the lowest energy band exhibits one, two or four pairs of degenerate single-particle ground states ...
Chen, Ji-Pei   +4 more
core   +2 more sources

Locking of skyrmion cores on a centrosymmetric discrete lattice: Onsite versus offsite

open access: yesPhysical Review Research, 2021
A magnetic skyrmion crystal (SkX) with a swirling spin configuration, which is one of topological spin crystals as a consequence of an interference between multiple spin density waves, shows a variety of noncoplanar spin patterns depending on a way of ...
Satoru Hayami, Ryota Yambe
doaj   +1 more source

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