Time-reversal symmetry breaking superconductivity between twisted cuprate superconductors

SYF Zhao, X Cui, PA Volkov, H Yoo, S Lee… - Science, 2023 - science.org
Twisted interfaces between stacked van der Waals (vdW) cuprate crystals present a platform
for engineering superconducting order parameters by adjusting stacking angles. Using a …

High-temperature topological superconductivity in twisted double-layer copper oxides

O Can, T Tummuru, RP Day, I Elfimov, A Damascelli… - Nature Physics, 2021 - nature.com
Various phenomena occur when two-dimensional materials, such as graphene or transition
metal dichalcogenides, are assembled into bilayers with a twist between the individual …

Charge-4e superconductivity and chiral metal in 45°-twisted bilayer cuprates and related bilayers

YB Liu, J Zhou, C Wu, F Yang - Nature Communications, 2023 - nature.com
The material realization of charge-4e/6e superconductivity (SC) is a big challenge. Here, we
propose to realize charge-4e SC in maximally-twisted homobilayers, such as 45∘-twisted …

Prominent Josephson tunneling between twisted single copper oxide planes of Bi2Sr2-xLaxCuO6+y

H Wang, Y Zhu, Z Bai, Z Wang, S Hu, HY Xie… - Nature …, 2023 - nature.com
Josephson tunneling in twisted cuprate junctions provides a litmus test for the pairing
symmetry, which is fundamental for understanding the microscopic mechanism of high …

High-angular-momentum topological superconductivities in twisted bilayer quasicrystal systems

YB Liu, Y Zhang, WQ Chen, F Yang - Physical Review B, 2023 - APS
The electron states in the quasicrystal (QC) are hot topics recently. While previous attentions
were focused on such intrinsic QCs as the Penrose lattice, the recent “twistronics” provides …

Second-order topological superconductors with mixed pairing

X Zhu - Physical Review Letters, 2019 - APS
We show that a two-dimensional semiconductor with Rashba spin-orbit coupling could be
driven into the second-order topological superconducting phase when a mixed-pairing state …

Making chiral topological superconductors from nontopological superconductors through large angle twists

YB Liu, J Zhou, Y Zhang, WQ Chen, F Yang - Physical Review B, 2023 - APS
The material realization of the intrinsic chiral topological superconductivity (TSC) is still a big
challenge in modern condensed-matter physics. In this paper, we propose a general …

Josephson diode effects in twisted nodal superconductors

PA Volkov, É Lantagne-Hurtubise, T Tummuru… - Physical Review B, 2024 - APS
Recent Josephson tunneling experiments on twisted flakes of high-T c cuprate
superconductor Bi 2 Sr 2 CaCu 2 O 8+ x revealed a nonreciprocal behavior of the critical …

High-temperature Majorana corner modes in a superconductor heterostructure: Application to twisted bilayer cuprate superconductors

YX Li, CC Liu - Physical Review B, 2023 - APS
The realization of Majorana corner modes generally requires unconventional
superconducting pairing or s-wave pairing. However, the bulk nodes in unconventional …

Tuning topological superconductivity within the model of twisted bilayer cuprates

M Fidrysiak, B Rzeszotarski, J Spałek - Physical Review B, 2023 - APS
We carry out a theoretical study of unconventional superconductivity in twisted bilayer
cuprates (TBCs) as a function of electron density and layer twist angle. The bilayer tJU …