290 citations · 570 across the 14 of their papers we have counts for
14 papers
Femtosecond concerted rotation of molecules on a 2D material interface
Kiana Baumgärtner, Misa Nozaki, Marvin Reuner +20
Interfaces between molecules and 2D materials exhibit energy-driven functionalities, wherein charge transfer directs molecular motion. Unlike equilibrium systems, where molecular a…
Semimetallic Nature and Magnetic Polarons in EuB6 Studied by Angle-Resolved Photoemission Spectroscopy
Chul-Hee Min, Boyoun Kang, Beong Ki Cho +3
Temperature-dependent angle-resolved photoemission spectroscopy (ARPES) was carried out on single-crystalline EuB6 samples. By measuring ARPES spectra in an extended Brillouin zone…
Ubiquitous impact of localised impurity states on the exchange coupling mechanism in magnetic topological insulators
Thiago R. F. Peixoto, Hendrik Bentmann, Philipp Rüßmann +27
Since the discovery of the quantum anomalous Hall effect in the magnetically doped topological insulators (MTI) Cr:(Bi,Sb)Te and V:(Bi,Sb)Te, the search for the exc…
Ultrafast molecular orbital tomography of a pentacene thin film using time-resolved momentum microscopy at a free-electron laser
K. Baumgärtner, M. Reuner, C. Metzger +19
We use time-resolved momentum microscopy at a free-electron laser (FEL) and extend orbital tomography into the time domain to image the electronic wave functions of excited molecul…
Robust surface states and coherence phenomena in magnetically alloyed SmB6
Lin Miao, Chul-Hee Min, Yishuai Xu +14
Samarium hexaboride is a candidate for the topological Kondo insulator state, in which Kondo coherence is predicted to give rise to an insulating gap spanned by topological surface…
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…
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…
Chemical and valence reconstruction at the surface of SmB6 revealed with resonant soft x-ray reflectometry
V. B. Zabolotnyy, K. Fürsich, R. J. Green +12
Samarium hexaboride (SmB), a Kondo insulator with mixed valence, has recently attracted much attention as a possible host for correlated topological surface states. Here, we us…
Irreversible proliferation of magnetic moments at cleaved surfaces of the topological Kondo insulator SmB6
Haowei He, Lin Miao, Edwin Augustin +10
The compound SmB is the best established realization of a topological Kondo insulator, in which a topological insulator state is obtained through Kondo coherence. Recent studie…
Valence Characterization of Surface and Subsurface Region in SmB6
P. Lutz, M. Thees, T. R. F. Peixoto +4
Samarium hexaboride (SmB6), which lies in the mixed valence regime in the Anderson model, has been predicted to possess topologically protected surface states. The intensive invest…
Universal properties of the near-gap spectra of SmB6: dynamical mean-field calculations and photoemission experiments
Chul-Hee Min, K. -S. Chen, P. Lutz +7
Samarium hexaboride (SmB6) has been presumed to show a topological Kondo insulating state consisting of fully occupied quasiparticle bands in the concept of a Fermi liquid. This ga…
Electronic structure of YbB: Is it a Topological Insulator or not?
Chang-Jong Kang, J. D. Denlinger, J. W. Allen +7
To resolve the controversial issue of the topological nature of the electronic structure of YbB, we have made a combined study using density functional theory (DFT) and angle…
The importance of Charge Fluctuations for the Topological Phase in SmB
Chul-Hee Min, P. Lutz, S. Fiedler +5
The discovery of topologically non-trivial states in band insulators has induced an extensive search for topological phase in strongly correlated electron systems. In particular, s…
Single Dirac-cone on the Cs-covered topological insulator surface Sb2Te3(0001)
Christoph Seibel, Henriette Maaß, Minoru Ohtaka +6
Using angle-resolved photoelectron spectroscopy we investigate the surface electronic structure of the three-dimensional topological insulator (TI) Sb2Te3(0001). Our data show the…