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 …

Non-Hermitian higher-order topological superconductors in two dimensions: Statics and dynamics

AK Ghosh, T Nag - Physical Review B, 2022 - APS
Being motivated by intriguing phenomena, such as the breakdown of conventional bulk
boundary correspondence and the emergence of skin modes in the context of non-Hermitian …

Generation of higher-order topological insulators using periodic driving

AK Ghosh, T Nag, A Saha - Journal of Physics: Condensed …, 2023 - iopscience.iop.org
Topological insulators (TIs) are a new class of materials that resemble ordinary band
insulators in terms of a bulk band gap but exhibit protected metallic states on their …

Floquet generation of a second-order topological superconductor

AK Ghosh, T Nag, A Saha - Physical Review B, 2021 - APS
We theoretically investigate the Floquet generation of a second-order topological
superconducting (SOTSC) phase hosting Majorana corner modes (MCMs), considering a …

Hierarchy of higher-order topological superconductors in three dimensions

AK Ghosh, T Nag, A Saha - Physical Review B, 2021 - APS
After exploring much on two-dimensional higher-order topological superconductors
(HOTSCs) hosting Majorana corner modes (MCMs) only, we propose a simple fermionic …

Systematic generation of the cascade of anomalous dynamical first-and higher-order modes in Floquet topological insulators

AK Ghosh, T Nag, A Saha - Physical Review B, 2022 - APS
After extensive investigation of the Floquet second-order topological insulator (FSOTI) in two
dimensions, here we propose two driving schemes to systematically engineer the hierarchy …

Higher-order topological insulator phase in a modified Haldane model

B Wang, X Zhou, H Lin, A Bansil - Physical Review B, 2021 - APS
We explore the topological properties of a modified Haldane model (MHM) in which the
strength of the nearest-neighbor and next-nearest-neighbor hop** terms is made unequal …

Dynamical construction of quadrupolar and octupolar topological superconductors

AK Ghosh, T Nag, A Saha - Physical Review B, 2022 - APS
We propose a three-step periodic drive protocol to engineer two-dimensional (2D) Floquet
quadrupole superconductors and three-dimensional (3D) Floquet octupole superconductors …

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 …

Second-order topological superconductor via noncollinear magnetic texture

P Chatterjee, AK Ghosh, AK Nandy, A Saha - Physical Review B, 2024 - APS
We put forth a theoretical framework for engineering a two-dimensional (2D) second-order
topological superconductor (SOTSC) by utilizing a heterostructure: incorporating …