131 citations · 274 across the 7 of their papers we have counts for
7 papers
Orbital Hall Effect in Weyl Semimetals from quantum geometric band interference
Chiara Pacella, Maximilian Ünzelmann, Ahmed Osman +4
Orbital angular momentum (OAM) transport in solids, prominently manifested in the orbital Hall effect, has emerged as a fundamental phenomenon that can decisively exceed its spin-b…
Tomographic Imaging of Orbital Vortex Lines in Three-Dimensional Momentum Space
T. Figgemeier, M. Ünzelmann, P. Eck +16
We report the experimental discovery of orbital vortex lines in the three-dimensional (3D) band structure of a topological semimetal. Combining linear and circular dichroism in sof…
Strongly Anisotropic Spin and Orbital Rashba Effect at a Tellurium - Noble Metal Interface
B. Geldiyev, M. Ünzelmann, P. Eck +19
We study the interplay of lattice, spin and orbital degrees of freedom in a two-dimensional model system: a flat square lattice of Te atoms on a Au(100) surface. The atomic structu…
Momentum-space signatures of Berry flux monopoles in a Weyl semimetal
M. Ünzelmann, H. Bentmann, T. Figgemeier +14
Since the early days of Dirac flux quantization, magnetic monopoles have been sought after as a potential corollary of quantized electric charge. As opposed to magnetic monopoles e…
Orbital Complexity in Intrinsic Magnetic Topological Insulators MnBiTe and MnBiTe
R. C. Vidal, H. Bentmann, J. I. Facio +16
Using angle-resolved photoelectron spectroscopy (ARPES), we investigate the surface electronic structure of the magnetic van der Waals compounds MnBiTe and MnBiTe$_{10}…
Topological electronic structure and intrinsic magnetization in MnBiTe: a BiTe-derivative with a periodic Mn sublattice
Raphael C. Vidal, Alexander Zeugner, Jorge I. Facio +23
Combinations of non-trivial band topology and long-range magnetic order hold promise for realizations of novel spintronic phenomena, such as the quantum anomalous Hall effect and t…
Orbital Fingerprint of Topological Fermi Arcs in a Weyl Semimetal
Chul-Hee Min, Hendrik Bentmann, Jennifer N. Neu +15
The monopnictides TaAs and TaP are well-established Weyl semimetals. Yet, a precise assignment of Fermi arcs, accomodating the predicted chiral charge of the bulk Weyl points, has…