Results 91 to 100 of about 2,145,711 (307)
Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge
Advanced Functional Materials, EarlyView.Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu +11 more
wiley +1 more source
Компьютерная оптикаWe investigate the topological charge of superposition of parallel identical vortex beams of arbitrary shape – either Laguerre-Gaussian beams or Bessel-Gaussian beams or some other vortex beams with a rotationally symmetric intensity distribution.
A.A. Kovalev, V.V. Kotlyar, A.G. Nalimov
doaj +1 more source
Localization properties of fermions and bosons [PDF]
, 2006 The topological structure of the QCD vacuum can be probed by monitoring the spatial localization of the low-lying Dirac eigenmodes. This approach can be pursued on the lattice, and unlike the traditional one requires no smoothing of the gauge field.
de Forcrand, Philippe
core +2 more sources
Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film
Advanced Functional Materials, EarlyView.This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun +3 more
wiley +1 more source
Arbitrary orbital angular momentum addition in second harmonic generation
New Journal of Physics, 2014 We demonstrate second harmonic generation performed with optical vortices with different topological charges imprinted on orthogonal polarizations. Besides the intuitive charge doubling, we implement arbitrary topological charge addition on the second ...
W T Buono +4 more
doaj +1 more source
Transport measurement of fractional charges in topological models
npj Quantum Materials, 2023 The static topological fractional charge (TFC) in condensed matter systems is related to the band topology and thus has potential applications in topological quantum computation.
Shu-guang Cheng +4 more
doaj +1 more source
Topological charge pumping by a sliding moiré pattern [PDF]
Physical review B, 2019 We study the adiabatic topological charge pumping driven by interlayer sliding in the moire superlattices. We show that, when we slide a single layer of the twisted bilayer system relatively to the other, a moire pattern flow and a quantized transport of
Manato Fujimoto +2 more
semanticscholar +1 more source
Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn
Advanced Functional Materials, EarlyView.Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed +7 more
wiley +1 more source
Lattice topological charge and boundary conditions
Physics Letters B, 1989 Abstract We discuss some effects of the boundary conditions on the topological properties of lattice gauge theories.
DI GIACOMO, ADRIANO +2 more
openaire +2 more sources
Comparing topological charge definitions using topology fixing actions [PDF]
The European Physical Journal A, 2010 We investigate both the hyperbolic action and the determinant ratio action designed to fix the topological charge on the lattice. We show to what extent topology is fixed depending on the parameters of these actions, keeping the physical situation fixed.
Bruckmann, F. +5 more
openaire +4 more sources