71 citations · 302 across the 24 of their papers we have counts for
5 papers · 1 filter
Near room-temperature ferromagnetism from double-exchange in the van der Waals material CrGeTe: evidence from optical conductivity under pressure
Jihaan Ebad-Allah, Daniel Guterding, Meera Varma +4
The unexpected discovery of intrinsic ferromagnetism in layered van der Waals materials has sparked interest in both their fundamental properties and their potential for novel appl…
Optical conductivity of the metallic pyrochlore iridate PrIrO: Influence of spin-orbit coupling and electronic correlations on the electronic structure
Harish Kumar, M. Köpf, P. Telang +4
The synergy of strong spin-orbit coupling and electron-electron interactions gives rise to unconventional topological states, such as topological Mott insulator, Weyl semimetal, an…
Optical study of the charge dynamics evolution in the topological insulators MnBiTe and Mn(BiSb)Te under high pressure
M. Köpf, S. H. Lee, Z. Q. Mao +1
The van der Waals material MnBiTe and the related Sb-substituted compounds Mn(BiSb)Te are prominent members of the family of magnetic topological insula…
Optical signatures of type-II Weyl fermions in the noncentrosymmetric semimetals AlSi (=La, Ce, Pr, Nd, Sm)
J. Kunze, M. Köpf, Weizheng Cao +2
Weyl semimetals with magnetic ordering provide a promising platform for the investigation of rare topological effects such as the anomalous Hall effect, resulting from the interpla…
Optical anisotropy of the kagome magnet FeSn: Dominant role of excitations between kagome and Sn layers
J. Ebad-Allah, M. -C. Jiang, R. Borkenhagen +8
Antiferromagnetic FeSn is considered to be a close realization of the ideal two-dimensional (2D) kagome lattice, hosting Dirac cones, van Hove singularities, and flat bands, as it…