Results 121 to 130 of about 2,145,711 (307)

Chiral magnetic skyrmions with arbitrary topological charge [PDF]

Physical review B, 2018
We show that continuous and spin-lattice models of chiral ferro- and antiferromagnets provide the existence of an infinite number of stable soliton solutions of any integer topological charge.
F. Rybakov, N. Kiselev
semanticscholar   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

Advanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu, Saba Firouznia, Charl F. J. Faul, Majid Taghavi, Jonathan Rossiter   +4 more
wiley   +1 more source

Laughlin charge pumping from interplay of chiral Dirac and chiral Majorana modes

Physical Review Research
Laughlin charge pumping has provided critical insights into the topological classification of individual materials, but remains largely unexplored in topological junctions.
Zhan Cao, Yang Feng, Zhi-Hai Liu, Ke He
doaj   +1 more source

Cryogenic Focused Ion Beam Milling to Investigate the Anisotropic Magnetotransport Properties of Bismuth Microcrystals

Advanced Functional Materials, EarlyView.
The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández, Soraya Sangiao, Claudia Felser, Chandra Shekhar, José Ángel Pardo, Alfonso Ibarra, José María De Teresa   +6 more
wiley   +1 more source

A metalens for detecting fractional-order optical vortices

Компьютерная оптика
In this work, a metalens for detecting an incident field with a fractional topological charge ranging from – 2 to 0 is proposed. The metalens is based on a spiral zone plate with a topological charge of 1.5.
A.G. Nalimov, V.V. Kotlyar, Y.V. Khanenko, S.D. Poletaev   +3 more
doaj   +1 more source

Magnetotransport of Weyl semimetals with ℤ2 topological charge and chiral anomaly

Journal of High Energy Physics, 2019
We calculate the magnetoconductivity of the Weyl semimetal with ℤ2 topological charge and chiral anomaly utilizing the recently developed hydrodynamic theory.
Marek Rogatko, Karol I. Wysokinski
doaj   +1 more source

Hall conductivity as bulk signature of topological transitions in superconductors

, 2013
Topological superconductors may undergo transitions between phases with different topological numbers which, like the case of topological insulators, are related to the presence of gapless (Majorana) edge states.
Araújo, Miguel A. N., Castro, Eduardo V., Sacramento, Pedro D.   +2 more
core   +1 more source

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Chiral symmetry breaking and topological charge of zigzag graphene nanoribbons

New Journal of Physics
Interacting quasi-one-dimensional zigzag graphene nanoribbons display gapped edge excitations. Although the self-consistent Hartree–Fock fields break chiral symmetry, our work demonstrates that zigzag graphene nanoribbons maintain their status as short ...
Hyun Cheol Lee, S-R Eric Yang
doaj   +1 more source

Effectively Identifying the Topological Charge and Polarization Order of Arbitrary Singular Light Beams Based on Orthogonal Polarization Separating

IEEE Photonics Journal, 2019
Singular beams with spatially variant field distributions have various fantastic applications. However, one of the significant challenges that hinder the wide application of singular beams is how to effectively identify the topological charge and the ...
Yanliang He, Huapeng Ye, Junmin Liu, Zhiqiang Xie, Peipei Wang, Bo Yang, Xinxing Zhou, Yanxia Gao, Shuqing Chen, Ying Li, Dianyuan Fan   +10 more
doaj   +1 more source