Colloquium: Quantum anomalous Hall effect

CZ Chang, CX Liu, AH MacDonald - Reviews of Modern Physics, 2023 - APS
The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Two-dimensional topological insulator state in cadmium arsenide thin films

AC Lygo, B Guo, A Rashidi, V Huang… - Physical Review Letters, 2023 - APS
Two-dimensional topological insulators (2D TIs) are a highly desired quantum phase but few
materials have demonstrated clear signatures of a 2D TI state. It has been predicted that 2D …

Zeeman field-induced two-dimensional Weyl semimetal phase in cadmium arsenide

B Guo, W Miao, V Huang, AC Lygo, X Dai… - Physical Review Letters, 2023 - APS
We report a topological phase transition in quantum-confined cadmium arsenide (Cd 3 As 2)
thin films under an in-plane Zeeman field when the Fermi level is tuned into the topological …

Keldysh field theory of dynamical exciton condensation transitions in nonequilibrium electron-hole bilayers

Y Zeng, V Crépel, AJ Millis - Physical Review Letters, 2024 - APS
Recent experiments have realized steady-state electrical injection of interlayer excitons in
electron-hole bilayers subject to a large bias voltage. In the ideal case in which interlayer …

Magneto-induced topological phase transition in inverted InAs/GaSb bilayers

Z Han, T Li, L Zhang, RR Du - Physical Review Research, 2024 - APS
We report a magneto-induced topological phase transition in inverted InAs/GaSb bilayers
from a quantum spin Hall insulator to a normal insulator. We utilize a dual-gated Corbino …

Interplay of quantum spin Hall effect and spontaneous time-reversal symmetry breaking in electron-hole bilayers. I. Transport properties

T Paul, VF Becerra, T Hyart - Physical Review B, 2022 - APS
The band-inverted electron-hole bilayers, such as InAs/GaSb, are an interesting playground
for the interplay of quantum spin Hall effect and correlation effects because of the small …

Interplay of quantum spin Hall effect and spontaneous time-reversal symmetry breaking in electron-hole bilayers. II. Zero-field topological superconductivity

T Paul, VF Becerra, T Hyart - Physical Review B, 2022 - APS
It has been proposed that band-inverted electron-hole bilayers support a phase transition
from an insulating phase with spontaneously broken time-reversal symmetry to a quantum …

[CARTE][B] Epitaxial growth and magnetotransport studies of the topological pnictide Cd3As2

B Guo - 2024 - search.proquest.com
Within the family of II3V2 pnictides, cadmium arsenide (Cd 3 As 2) is unique for hosting
topologically non-trivial bands in its electronic structure. In the bulk limit, it is regarded as a …