Hourglass charge-three Weyl phonons

X Wang, F Zhou, Z Zhang, ZM Yu, Y Yao - Physical Review B, 2022 - APS
The unconventional Weyl point with nonlinear dispersion features higher topological charge|
C|> 1 and multiple topologically protected Fermi arc states at its boundary. As a novel …

Maximally charged single-pair multi-Weyl point phonons in -type

Y Yang, C Xie, Y Cui, X Wang, W Wu - Physical Review B, 2023 - APS
The realization of multi-Weyl systems with the minimum nonzero number of Weyl points and
the maximum charge number remains challenging in topology physics. In this work, based …

Metals, fractional metals, and superconductivity in rhombohedral trilayer graphene

AL Szabó, B Roy - Physical Review B, 2022 - APS
Combining mean-field and renormalization group analyses, here we unveil the nature of
recently observed superconductivity and parent metallic states in chemically doped …

Competing orders and cascade of degeneracy lifting in doped Bernal bilayer graphene

AL Szabó, B Roy - Physical Review B, 2022 - APS
Motivated by recent experiments [H. Zhou, Science 375, 774 (2022) SCIEAS 0036-8075
10.1126/science. abm8386 and SC de la Barrera, arXiv: 2110.13907], here we propose a …

Role of topological charges in the nonlinear optical response from Weyl semimetals

A Bharti, G Dixit - Physical Review B, 2023 - APS
The successful realization of the topological Weyl semimetals has revolutionized
contemporary physics. In recent years, multi-Weyl semimetals, a class of topological Weyl …

Unpaired Weyl phonon systems in NaHPO3NH2

Y Yang, F Zhou, J Wang, Y Liu, Y Cui, G Ding… - Applied Physics …, 2023 - pubs.aip.org
Phonon-based Weyl points (WPs) are usually considered to appear in pairs with opposite
chirality. Here, we report the phonon dispersion in a realistic material monosodium …

Understanding the three-dimensional quantum Hall effect in generic multi-Weyl semimetals

F Xiong, C Honerkamp, DM Kennes, T Nag - Physical Review B, 2022 - APS
The quantum Hall effect in three-dimensional Weyl semimetal (WSM) receives significant
attention for the emergence of the Fermi loop where the underlying two-dimensional Hall …

Skin effect as a probe of transport regimes in Weyl semimetals

P Matus, RMA Dantas, R Moessner… - Proceedings of the …, 2022 - National Acad Sciences
We study the propagation of an oscillatory electromagnetic field inside a Weyl semimetal. In
conventional conductors, the motion of the charge carriers in the skin layer near the surface …

Projected topological branes

A Panigrahi, V Juričić, B Roy - Communications Physics, 2022 - nature.com
Nature harbors crystals of dimensionality (d) only up to three. Here we introduce the notion
of projected topological branes (PTBs): Lower-dimensional branes embedded in higher …

Magneto-transport phenomena of type-I multi-Weyl semimetals in co-planar setups

T Nag, S Nandy - Journal of Physics: Condensed Matter, 2020 - iopscience.iop.org
Having the chiral anomaly (CA) induced magneto-transport phenomena extensively studied
in single Weyl semimetal as characterized by topological charge n= 1, we here address the …