Higher-order topological phases in crystalline and non-crystalline systems: a review

YB Yang, JH Wang, K Li, Y Xu - Journal of Physics: Condensed …, 2024 - iopscience.iop.org
Higher-order topological phases in crystalline and non-crystalline systems: a review Page 1
Journal of Physics: Condensed Matter ACCEPTED MANUSCRIPT • OPEN ACCESS Higher-order …

Topological Chern vectors in three-dimensional photonic crystals

GG Liu, Z Gao, Q Wang, X Xi, YH Hu, M Wang, C Liu… - Nature, 2022 - nature.com
The paradigmatic example of a topological phase of matter, the two-dimensional Chern
insulator,,,–, is characterized by a topological invariant consisting of a single integer, the …

Rare regions and avoided quantum criticality in disordered Weyl semimetals and superconductors

JH Pixley, JH Wilson - Annals of Physics, 2021 - Elsevier
Disorder in Weyl semimetals and superconductors is surprisingly subtle, attracting attention
and competing theories in recent years. In this brief review, we discuss the current …

Topological phase transitions in disordered electric quadrupole insulators

CA Li, B Fu, ZA Hu, J Li, SQ Shen - Physical Review Letters, 2020 - APS
We investigate disorder-driven topological phase transitions in quantized electric
quadrupole insulators in two dimensions. We show that chiral symmetry can protect the …

Evidence for one-dimensional chiral edge states in a magnetic Weyl semimetal Co3Sn2S2

S Howard, L Jiao, Z Wang, N Morali, R Batabyal… - Nature …, 2021 - nature.com
The physical realization of Chern insulators is of fundamental and practical interest, as they
are predicted to host the quantum anomalous Hall (QAH) effect and topologically protected …

Deep learning the quantum phase transitions in random two-dimensional electron systems

T Ohtsuki, T Ohtsuki - Journal of the Physical Society of Japan, 2016 - journals.jps.jp
Random electron systems show rich phases such as Anderson insulator, diffusive metal,
quantum Hall and quantum anomalous Hall insulators, Weyl semimetal, as well as …

Rare-region-induced avoided quantum criticality in disordered three-dimensional Dirac and Weyl semimetals

JH Pixley, DA Huse, S Das Sarma - Physical Review X, 2016 - APS
We numerically study the effect of short-ranged potential disorder on massless
noninteracting three-dimensional Dirac and Weyl fermions, with a focus on the question of …

Dirty Weyl semimetals: Stability, phase transition, and quantum criticality

S Bera, JD Sau, B Roy - Physical Review B, 2016 - APS
We study the stability of three-dimensional incompressible Weyl semimetals in the presence
of random quenched charge impurities. Combining numerical analysis and scaling theory …

Deep learning the quantum phase transitions in random electron systems: Applications to three dimensions

T Ohtsuki, T Ohtsuki - Journal of the Physical Society of Japan, 2017 - journals.jps.jp
Three-dimensional random electron systems undergo quantum phase transitions and show
rich phase diagrams. Examples of the phases are the band gap insulator, Anderson …

Cubic 3D Chern photonic insulators with orientable large Chern vectors

C Devescovi, M García-Díez, I Robredo… - Nature …, 2021 - nature.com
Abstract Time Reversal Symmetry (TRS) broken topological phases provide gapless surface
states protected by topology, regardless of additional internal symmetries, spin or valley …