1.2k citations · 1.8k across the 10 of their papers we have counts for
10 papers
Acoustic Wave-Function Imaging of Sublattice Physics in a Kagome Lattice
L. Müller, N. Endres, B. Geldiyev +4
The canonical kagome band structure hosts a Dirac cone, saddle-point van Hove singularities (vHS), and a flat band. Characteristically, these features exhibit distinct sublattice l…
Growth of Altermagnetic α-MnTe Films: Substrate Variation and Surface Modification
M. Dittmar, L. Hirnet, H. Haberkamm +10
Manganese telluride (MnTe) in its hexagonal α-MnTe crystal structure has evolved as one of the altermagnet workhorse materials. The synthesis of MnTe thin films is highly relevant…
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…
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-driven Rashba effect in a binary honeycomb monolayer AgTe
Maximilian Ünzelmann, Hendrik Bentmann, Philipp Eck +12
The Rashba effect is fundamental to the physics of two-dimensional electron systems and underlies a variety of spintronic phenomena. It has been proposed that the formation of Rash…
Surface states and Rashba-type spin polarization in antiferromagnetic MnBiTe
R. C. Vidal, H. Bentmann, T. R. F. Peixoto +32
The layered van der Waals antiferromagnet MnBiTe has been predicted to combine the band ordering of archetypical topological insulators such as BiTe with the magnet…
Chemical Aspects of the Antiferromagnetic Topological Insulator MnBiTe
Alexander Zeugner, Frederik Nietschke, Anja U. B. Wolter +25
Crystal growth of MnBiTe has delivered the first experimental corroboration of the 3D antiferromagnetic topological insulator state. Our present results confirm that th…
Prediction and observation of the first antiferromagnetic topological insulator
Mikhail M. Otrokov, Ilya I. Klimovskikh, Hendrik Bentmann +41
Magnetic topological insulators (MTIs) are narrow gap semiconductor materials that combine non-trivial band topology and magnetic order. Unlike their nonmagnetic counterparts, MTIs…
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…