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 …

Unusual change in the Dirac-cone energy band upon a two-step magnetic transition in CeBi

H Oinuma, S Souma, K Nakayama, K Horiba… - Physical Review B, 2019 - APS
We performed angle-resolved photoemission spectroscopy (ARPES) on CeBi which
undergoes a two-step antiferromagnetic (AF) transition with temperature. Soft-x-ray ARPES …

Magnetic states in a three-dimensional topological Kondo insulator

R Peters, T Yoshida, N Kawakami - Physical Review B, 2018 - APS
We theoretically study the magnetic phase diagram of a three-dimensional topological
Kondo insulator by means of real-space dynamical mean-field theory. We find that …

Possible high-T C superconductivity at 50 GPa in sodium hydride with clathrate structure

CH Chen, A Huang, CC Tsuei, HT Jeng - New Journal of Physics, 2021 - iopscience.iop.org
Ambient-pressure room-temperature superconductivity is one ultimate goal of science, for it
will bring worldwide revolutionary changes in all kinds of technology. Several room …

Topological phase transitions and optical properties of AB (A= Sc, Y and B= Sb, Bi) compounds

M Narimani, Z Nourbakhsh - Journal of Physics and Chemistry of Solids, 2020 - Elsevier
In this study, we investigated some physical properties of AB (A= Sc, Y and B= Sb, Bi)
compounds in different structural phases based on density functional theory. The effects of …

classification for a novel antiferromagnetic topological insulating phase in three-dimensional topological Kondo insulator

H Li, Y Zhong, Y Liu, HG Luo… - Journal of Physics …, 2018 - iopscience.iop.org
Antiferromagnetic topological insulator (AFTI) is a topological matter that breaks time-
reversal symmetry. Since its proposal, explorations of AFTI in strong-correlated systems are …

Topology and magnetism in the Kondo insulator phase diagram

M Klett, S Ok, D Riegler, P Wölfle, R Thomale… - Physical Review B, 2020 - APS
Topological Kondo insulators are a rare example of an interaction-enabled topological
phase of matter in three-dimensional crystals—making them an intriguing but also hard case …

Correlation induced magnetic topological phases in the mixed-valence compound

H Liu, MM Hirschmann, GA Sawatzky, G Khaliullin… - Physical Review …, 2023 - APS
SmB 6 is a mixed-valence compound with flat f-electron bands that have a propensity to
magnetism. Here, using a realistic Γ 8 quartet model, we investigate the dynamical spin …

[HTML][HTML] Signature of topological states in antiferromagnetic Sm-substituted Bi2Te3

JH Jun, J Kim, SW Kim, MH Jung - Scientific Reports, 2020 - nature.com
An antiferromagnetic topological insulator has been predicted to be preserved by breaking
both time-reversal symmetry and primitive lattice translational symmetry. However, the …

Valence transition in topological Kondo insulator

JT Zhuang, XJ Zheng, ZY Wang, X Ming… - Journal of Physics …, 2019 - iopscience.iop.org
We investigate the valence transition in three-dimensional topological Kondo insulator
through slave-boson analysis of periodic Anderson model. By including the effect of intra …