Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Sinner, Andreas"'
Publikováno v:
Phys. Rev. Research 6, 023203 (2024)
Experiments conducted on two-dimensional twisted materials have revealed a plethora of moir\'e patterns with different forms and shapes. The formation of these patterns is usually attributed to the presence of small strains in the samples, which typi
Externí odkaz:
http://arxiv.org/abs/2309.08671
Publikováno v:
Phys. Rev. Lett. 131, 166402 (2023)
We study the effects of strain in moir\'e systems composed of honeycomb lattices. We elucidate the formation of almost perfect one-dimensional moir\'e patterns in twisted bilayer systems. The formation of such patterns is a consequence of an interpla
Externí odkaz:
http://arxiv.org/abs/2210.07262
Autor:
Sinner, Andreas, Tkachov, Gregor
Publikováno v:
The European Physical Journal B 95, 95 (2022)
We study the electronic transport in the lowest Landau level of disordered two-dimensional semimetals placed in a homogeneous perpendicular magnetic field. The material system is modeled by the Bernevig-Hughes-Zhang Hamiltonian, which has zero energy
Externí odkaz:
http://arxiv.org/abs/2202.02873
Publikováno v:
Physical Review B 104, 245124 (2021)
We study the interlayer pairing states in layered systems of two different 2d electronic subsystems, one with relativistic linear and the other with non-relativistic parabolic spectrum. The complex order parameter of the paired state has a two compon
Externí odkaz:
http://arxiv.org/abs/2107.11256
Publikováno v:
Phys. Rev. B Letters 103, 201104 (2021)
We construct an effective low energy Hamiltonian which describes fermions dwelling on a deformed honeycomb lattice with dislocations and disclinations, and with an arbitrary hopping parameters of the corresponding tight binding model. It describes th
Externí odkaz:
http://arxiv.org/abs/2007.08372
Publikováno v:
Phys. Rev. Research 2, 033085 (2020)
We study the effect of interlayer Coulomb interaction in an electronic double layer. Assuming that each of the layers consists of a bipartite lattice, a sufficiently strong interlayer interaction leads to an interlayer pairing of electrons with a sta
Externí odkaz:
http://arxiv.org/abs/1912.13257
Autor:
Sinner, Andreas, Ziegler, Klaus
Publikováno v:
Annals of Physics 418, 168199 (2020)
When phonons couple to fermions in 2D semimetals, the interaction may turn the system into an insulator. There are several insulating phases in which the time reversal and the sublattice symmetries are spontaneously broken. Examples are many-body sta
Externí odkaz:
http://arxiv.org/abs/1908.00442
Autor:
Sinner, Andreas, Ziegler, Klaus
Publikováno v:
Annals of Physics 400, 262-278 (2019)
Fermions with one and two Dirac nodes are coupled to in-plane phonons to study a spontaneous transition into the Hall insulating phase. At sufficiently strong electron-phonon interaction a gap appears in the spectrum of fermions, signaling a transiti
Externí odkaz:
http://arxiv.org/abs/1807.02035
Publikováno v:
Phys. Rev. B 97, 235411 (2018)
A uniaxial strain applied to graphene-like materials moves the Dirac nodes along the boundary of the Brillouin zone. An extreme case is the merging of the Dirac node positions to a single degenerate spectral node which gives rise to a new topological
Externí odkaz:
http://arxiv.org/abs/1712.08529
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