Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Rao, Sumathi"'
We investigate magnetotransport across an interface between two Weyl semimetals (finite in both directions) whose Weyl nodes project onto two different surfaces which are twisted with respect to each other before being coupled. This gives rise to a n
Externí odkaz:
http://arxiv.org/abs/2408.10586
Publikováno v:
Phys. Rev. B 110,085417(2024)
We study magnon transmission across gate-controlled junctions in the $n=0$ manifold of Landau levels in monolayer graphene, in the presence of both spin and valley Zeeman fields. Specifically, we consider the $1|-1|1$ sandwich geometry. The nature of
Externí odkaz:
http://arxiv.org/abs/2404.06355
Parafermion zero modes can be trapped in the domain walls of quantum Hall edges proximitized by superconductors and ferromagnets. The $\nu = 1/3$ fractional quantum Hall side strip arising due to edge reconstruction of a $\nu = 1$ edge doubles the nu
Externí odkaz:
http://arxiv.org/abs/2308.01980
Publikováno v:
Phys. Rev. B 108, L161403(2023)
We investigate the effects of introducing a boost (a Zeeman field parallel to the spin quantization axis) at the proximitized helical edge of a two-dimensional (2D) quantum spin Hall insulator. Our self-consistent analysis finds that a Fulde-Ferrell-
Externí odkaz:
http://arxiv.org/abs/2305.17229
Publikováno v:
Phys. Rev. B 109, 155119 (2024)
We study the two-channel Kondo problem in the context of two interacting helical liquids coupled to a spin-$\frac12$ magnetic impurity. We show that the interactions between the two helical liquids significantly affect the phase diagram and other obs
Externí odkaz:
http://arxiv.org/abs/2304.04388
Publikováno v:
Phys. Rev. B 107, 125422(2023)
Monolayer graphene at charge neutrality in a quantizing magnetic field is a quantum Hall ferromagnet. Due to the spin and valley (near) degeneracies, there is a plethora of possible ground states. Previous theoretical work, based on a stringent ultra
Externí odkaz:
http://arxiv.org/abs/2211.02531
We study a parafermion Josephson junction (JJ) comprising a pair of counter-propagating edge modes of two quantum Hall (QH) systems, proximitized by an s-wave superconductor. We show that the difference between the lengths (which can be controlled by
Externí odkaz:
http://arxiv.org/abs/2208.05504
Publikováno v:
Phys. Rev. B 107, 195426 (2023)
We theoretically investigate the thermoelectric properties (electronic contribution) of a hybrid structure comprising of an inversion symmetry broken Weyl semimetal (WSM) and intrinsic Weyl superconductor (WSC) with $s$-wave pairing, employing the Bl
Externí odkaz:
http://arxiv.org/abs/2202.10237
Publikováno v:
SciPost Phys. Core (2022)
We study the phase diagram for a lattice model of a time-reversal-broken three-dimensional Weyl semimetal (WSM) in an orbital magnetic field $B$ with a flux of $p/q$ per unit cell ($0\le p \le q-1$), with minimal crystalline symmetry. We find several
Externí odkaz:
http://arxiv.org/abs/2108.03196