Zobrazeno 1 - 10
of 116
pro vyhledávání: '"J Tworzydło"'
Publikováno v:
New Journal of Physics, Vol 22, Iss 9, p 093022 (2020)
We calculate the Landau levels of a Kramers–Weyl semimetal thin slab in a perpendicular magnetic field B . The coupling of Fermi arcs on opposite surfaces broadens the Landau levels with a band width that oscillates periodically in 1/ B . We interp
Externí odkaz:
https://doaj.org/article/b93d9384b8a14935b7bed0be3c88e21a
Publikováno v:
New Journal of Physics, Vol 20, Iss 2, p 023023 (2018)
The Fermi surface of a conventional two-dimensional electron gas is equivalent to a circle, up to smooth deformations that preserve the orientation of the equi-energy contour. Here we show that a Weyl semimetal confined to a thin film with an in-plan
Externí odkaz:
https://doaj.org/article/ea4fc47db6e84d1f9b0c25cd0eda70bf
Publikováno v:
New Journal of Physics, Vol 19, Iss 2, p 025006 (2017)
A Weyl semimetal wire with an axial magnetization has metallic surface states (Fermi arcs) winding along its perimeter, connecting bulk Weyl cones of opposite topological charge (Berry curvature). We investigate what happens to this ‘Weyl solenoid
Externí odkaz:
https://doaj.org/article/3ed471f0cc7d497e989c80ddd8e270c8
Publikováno v:
New Journal of Physics, Vol 18, Iss 4, p 045009 (2016)
We formulate a linear response theory of the chiral magnetic effect in a finite Weyl semimetal, expressing the electrical current density j induced by a slowly oscillating magnetic field B or chiral chemical potential μ in terms of the scattering ma
Externí odkaz:
https://doaj.org/article/7c04910f799d43d991d999f2bd855553
Publikováno v:
New Journal of Physics, Vol 17, Iss 4, p 043014 (2015)
We extend the single-particle topological classification of insulators and superconductors to include systems in which disorder preserves average reflection symmetry. We show that the topological group structure of bulk Hamiltonians and topological d
Externí odkaz:
https://doaj.org/article/33ac65e4da61481ca99cea5bf1786500
Publikováno v:
New Journal of Physics, Vol 16, Iss 6, p 063049 (2014)
A two-dimensional superconductor with spin-triplet p -wave pairing supports chiral or helical Majorana edge modes with a quantized (length L -independent) thermal conductance. Sufficiently strong anisotropy removes both chirality and helicity, doubli
Externí odkaz:
https://doaj.org/article/612d8d960b22454592e1445aadffac3d
Publikováno v:
SciPost Physics, Vol 11, Iss 6, p 105 (2021)
The spatial discretization of the single-cone Dirac Hamiltonian on the surface of a topological insulator or superconductor needs a special "staggered" grid, to avoid the appearance of a spurious second cone in the Brillouin zone. We adapt the Sta
Externí odkaz:
https://doaj.org/article/6dba2519727245db8fa54438bdcfe0c0
Publikováno v:
Annalen der Physik
I. Introduction II. Two-dimensional lattice fermions III. Methods to avoid fermion doubling (sine dispersion, sine plus cosine dispersion, staggered lattice dispersion, linear sawtooth dispersion, tangent dispersion) IV. Topologically protected Dirac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc2d519204c85d973e36bb2928b64afa
https://hdl.handle.net/21.11116/0000-000D-65CF-921.11116/0000-000D-65D1-5
https://hdl.handle.net/21.11116/0000-000D-65CF-921.11116/0000-000D-65D1-5
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Akademický článek
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