Topological aspects of antiferromagnets

V Bonbien, F Zhuo, A Salimath, O Ly… - Journal of Physics D …, 2021 - iopscience.iop.org
The long fascination that antiferromagnetic materials has exerted on the scientific community
over about a century has been entirely renewed recently with the discovery of several …

Altermagnetic surface states: towards the observation and utilization of altermagnetism in thin films, interfaces and topological materials

RM Sattigeri, G Cuono, C Autieri - Nanoscale, 2023 - pubs.rsc.org
The altermagnetism influences the electronic states allowing the presence of non-relativistic
spin-splittings. Since altermagnetic spin-splitting is present along specific k-paths of the 3D …

Engineering axion insulator and other topological phases in superlattices without inversion symmetry

R Islam, S Mardanya, A Lau, G Cuono, TR Chang… - Physical Review B, 2023 - APS
We study theoretically the interplay between magnetism and topology in three-dimensional
HgTe/MnTe superlattices stacked along the (001) axis. Our results show the evolution of the …

Topological states in superlattices of HgTe class of materials for engineering three-dimensional flat bands

R Islam, B Ghosh, G Cuono, A Lau, W Brzezicki… - Physical Review …, 2022 - APS
In search of materials with three-dimensional flat band dispersions, using ab initio
computations we investigate how topological phases evolve as a function of hydrostatic …

Nonrelativistic spin splittings and altermagnetism in twisted bilayers of centrosymmetric antiferromagnets

S Sheoran, S Bhattacharya - Physical Review Materials, 2024 - APS
Magnetism-driven nonrelativistic spin splittings (NRSS) are promising for highly efficient
spintronics applications. Although 2D centrosymmetric (in four-dimensional spacetime) …

Hexagonal MnTe with Antiferromagnetic Spin Splitting and Hidden Rashba–Dresselhaus Interaction for Antiferromagnetic Spintronics

S Rooj, J Chakraborty, N Ganguli - Advanced Physics …, 2024 - Wiley Online Library
Hexagonal MnTe emerges as a critical component in designing magnetic quantum
heterostructures, calling for a detailed study. After finding a suitable combination of …

Quantum anomalous Hall insulator in ionic Rashba lattice of correlated electrons

MM Wysokiński, W Brzezicki - Physical Review B, 2023 - APS
In this work, we propose an exactly solvable two-dimensional lattice model of strongly
correlated electrons that realizes a quantum anomalous Hall insulator with Chern number …

[HTML][HTML] Orbital order and ferromagnetism in LaMn1− xGaxO3

C Autieri, M Cuoco, G Cuono, S Picozzi… - Physica B: Condensed …, 2023 - Elsevier
We study from first principles the magnetic, electronic, orbital and structural properties of the
LaMnO 3 doped with gallium replacing the Mn-site. The gallium do** reduces the Jahn …

High Chern number in strained thin films of dilute magnetic topological insulators

M Shafiei, F Fazileh, FM Peeters, MV Milošević - Physical Review B, 2023 - APS
The quantum anomalous Hall effect was first observed experimentally by do** the Bi 2 Se
3 materials family with chromium, where 5% do** induces an exchange field of around 0.1 …

Pentagonal nanowires from topological crystalline insulators: a platform for intrinsic core–shell nanowires and higher-order topology

G Hussain, G Cuono, P Dziawa, D Janaszko… - Nanoscale …, 2024 - pubs.rsc.org
We report on the experimental realization of Pb1− xSnx Te pentagonal nanowires (NWs)
with [110] orientation using molecular beam epitaxy techniques. Using first-principles …