Multifold nodal points in magnetic materials [PDF]
APL Materials, 2019 We describe the symmetry protected nodal points that can exist in magnetic space groups and show that only three-, six-, and eightfold degeneracies are possible (in addition to the two- and fourfold degeneracies that have already been studied). The three-
Jennifer Cano +2 more
doaj +5 more sources
Lighting of public spaces at nodal points [PDF]
ITM Web of Conferences, 2019 The publication deals with the issue of lighting public spaces in small towns near the impact of a large urban agglomeration. Indicated the possibility of shaping the illumination of the space based on nodal points.
Graczyk Rafał +2 more
doaj +3 more sources
Realization of Opened and Closed Nodal Lines and Four- and Three-fold Degenerate Nodal Points in XPt (X = Sc, Y, La) Intermetallic Compound: A Computational Modeling Study [PDF]
Frontiers in Chemistry, 2020 Realizing rich topological elements in topological materials has attracted increasing attention in the fields of chemistry, physics, and materials science.
Heju Xu
doaj +4 more sources
Symmetry-protected exceptional and nodal points in non-Hermitian systems [PDF]
SciPost Physics, 2023 One of the unique features of non-Hermitian (NH) systems is the appearance of NH degeneracies known as exceptional points (EPs). The extensively studied defective EPs occur when the Hamiltonian becomes non-diagonalizable.
Sharareh Sayyad, Marcus Stålhammar, Lukas Rødland, Flore K. Kunst
doaj +2 more sources
Symmetry-protected nodal points and nodal lines in magnetic materials [PDF]
Physical Review B, 2021 Jian Yang, Chen Fang, 2, 3 and Zheng-Xin Liu 5, ∗ Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China Songshan Lake Materials Laboratory , Dongguan, Guangdong 523808 ...
J. Yang, Chen Fang, Zhengxin Liu
semanticscholar +4 more sources
Topological semimetal with coexisting nodal points and nodal lines [PDF]
Physical Review BFeaturing exotic quantum transport and surface states, topological semimetals can be classified into nodal-point, nodal-line, and nodal-surface semimetals according to the degeneracy and dimensionality of their nodes.
Bing Luo, Ming-Jian Gao, Jun-Hong An
semanticscholar +3 more sources
Reconstruction of the Volterra-type integro-differential operator from nodal points
Boundary Value Problems, 2018 In this work, the Sturm–Liouville problem perturbated by a Volterra-type integro-differential operator is studied. We give a uniqueness theorem and an algorithm to reconstruct the potential of the problem from nodal points (zeros of eigenfunctions).
Baki Keskin
doaj +2 more sources
Magnonic triply-degenerate nodal points [PDF]
EPL (Europhysics Letters), 2017 We generalize the concept of triply-degenerate nodal points to non-collinear antiferromagnets. Here, we introduce this concept to insulating quantum antiferromagnets on the decorated honeycomb lattice, with spin-1 bosonic quasiparticle excitations known ...
S. Owerre
semanticscholar +4 more sources
Floquet multi-Weyl points in crossing-nodal-line semimetals [PDF]
Physical Review B, 2017 Weyl points with monopole charge $\ifmmode\pm\else\textpm\fi{}1$ have been extensively studied; however, real materials of multi-Weyl points, whose monopole charges are higher than 1, have yet to be found.
Zhong Wang, Zhongbo Yan
exaly +2 more sources
Triple nodal points characterized by their nodal-line structure in all magnetic space groups [PDF]
Physical review B, 2022 We analyze triply degenerate nodal points [or triple points (TPs) for short] in energy bands of crystalline solids. Specifically, we focus on spinless band structures, i.e., when spin-orbit coupling is negligible, and consider TPs formed along high ...
Patrick M. Lenggenhager +3 more
semanticscholar +1 more source