376 citations · 1.9k across the 34 of their papers we have counts for
35 papers
Single domain spectroscopic signatures of a magnetic Kagome metal
L. Plucinski, G. Bihlmayer, Y. Mokrousov +7
Spin- and orbital-resolved access to the electronic bands is necessary to establish key properties of quantum materials such as the quantum-geometric tensor. Despite recent revival…
Probing the band structure of the strongly correlated antiferromagnet NiPS3 across its phase transition
Benjamin Pestka, Biplab Bhattacharyya, Milosz Rybak +19
NiPS3 is an exfoliable van-der-Waals intralayer antiferromagnet with zigzag-type spin arrangement. It is distinct from other TMPS3 (TM: transition metal) materials by optical excit…
Scattering makes a difference in circular dichroic angle-resolved photoemission
Honey Boban, Mohammed Qahosh, Xiao Hou +16
Recent years have witnessed a steady progress towards blending 2D quantum materials into technology, with future applications often rooted in the electronic structure. Since crossi…
Identifying band structure changes of FePS3 across the antiferromagnetic phase transition
Benjamin Pestka, Jeff Strasdas, Gustav Bihlmayer +16
Magnetic 2D materials enable novel tuning options of magnetism. As an example, the van der Waals material FePS3, a zigzag-type intralayer antiferromagnet, exhibits very strong magn…
Single in situ Interface Characterization Composed of Niobium and a Selectively Grown (BiSb)Te Topological Insulator Nanoribbon
Kevin Janßen, Philipp Rüßmann, Sergej Liberda +14
With increasing attention in Majorana physics for possible quantum bit applications, a large interest has been developed to understand the properties of the interface between a …
On the origin of circular dichroism in angular resolved photoemission from graphene, graphite, and WSe family of materials
Lukasz Plucinski
Circular dichroism in angle-resolved photoemission (CD-ARPES) is one of the promising techniques for obtaining experimental insight into topological properties of novel materials,…
Twist angle dependent interlayer transfer of valley polarization from excitons to free charge carriers in WSe/MoSe heterobilayers
Frank Volmer, Manfred Ersfeld, Paulo E. Faria Junior +13
We identify an optical excitation mechanism that transfers a valley polarization from photo-excited electron-hole pairs to free charge carriers in twisted WSe/MoSe heterobi…
Electronic band structure changes across the antiferromagnetic phase transition of exfoliated MnPS probed by -ARPES
Jeff Strasdas, Benjamin Pestka, Milosz Rybak +17
Exfoliated magnetic 2D materials enable versatile tuning of magnetization, e.g., by gating or providing proximity-induced exchange interaction. However, their electronic band struc…
Geometry-induced spin-filtering in photoemission maps from WTe surface states
Tristan Heider, Gustav Bihlmayer, Jakub Schusser +5
We demonstrate that an important quantum material WTe exhibits a new type of geometry-induced spin-filtering effect in photoemission, stemming from low symmetry that is respons…
Orbital contributions in the element-resolved valence electronic structure of Bi2Se3
Cheng-Tai Kuo, Shih-Chieh Lin, Jean-Pascal Rueff +9
In this work, we studied the bulk band structure of a topological insulator (TI) Bi2Se3 and determined the contributions of the Bi and Se orbital states to the valence bands using…
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$_{10}…
Observation of high-temperature quantum anomalous Hall regime in intrinsic MnBiTe/BiTe superlattice
Haiming Deng, Zhiyi Chen, Agnieszka Wolos +11
The quantum anomalous Hall effect is a fundamental transport response of a topologically non-trivial system in zero magnetic field. Its physical origin relies on the intrinsically…
Temperature-dependent spin-resolved electronic structure of EuO thin films
Tristan Heider, Timm Gerber, Okan Köksal +10
The electronic structure of the ferromagnetic semiconductor EuO is investigated by means of spin- and angle-resolved photoemission spectroscopy (spin-ARPES) and density functional…
Mixed topological semimetals driven by orbital complexity in two-dimensional ferromagnets
Chengwang Niu, Jan-Philipp Hanke, Patrick M. Buhl +6
The concepts of Weyl fermions and topological semimetals emerging in three-dimensional momentum space are extensively explored owing to the vast variety of exotic properties that t…
Interface properties and built-in potential profile of a LaCrO/SrTiO superlattice determined by standing-wave excited photoemission spectroscopy
Shih-Chieh Lin, Cheng-Tai Kuo, Ryan B. Comes +14
LaCrO (LCO) / SrTiO (STO) heterojunctions are intriguing due to a polar discontinuity along (001), two distinct and controllable interface structures [(LaO)/(TiO)$^…
Electronic Structure of the Dilute Magnetic Semiconductor from Hard X-ray Photoelectron Spectroscopy and Hard X-ray Angle-Resolved Photoemission
Armela Keqi, Mathias Gehlmann, Giuseppina Conti +18
We have investigated the electronic structure of the dilute magnetic semiconductor (DMS) and compared it to that of an undoped reference sample, using h…
Element- and momentum-resolved electronic structure of the dilute magnetic semiconductor manganese doped gallium arsenide
Slavomír Nemšák, Mathias Gehlmann, Cheng-Tai Kuo +10
The dilute magnetic semiconductors have promise in spin-based electronics applications due to their potential for ferromagnetic order at room temperature, and various unique switch…
Localized segregation of gold in ultra-thin Fe films on Au(001)
Pika Gospodaric, Ewa Mlynczak, Markus Eschbach +5
The growth of up to 10 monolayer-thick Fe films on a Au(001) surface was investigated during deposition at room temperature and during annealing using low-energy electron diffracti…
Electrical resistance of individual defects at a topological insulator surface
Felix Lüpke, Markus Eschbach, Tristan Heider +10
Three-dimensional topological insulators host surface states with linear dispersion, which manifest as a Dirac cone. Nanoscale transport measurements provide direct access to the t…
Direct observation of the band gap transition in atomically thin ReS
Mathias Gehlmann, Irene Aguilera, Gustav Bihlmayer +13
ReS is considered as a promising candidate for novel electronic and sensor applications. The low crystal symmetry of the van der Waals compound ReS leads to a highly anisot…
Fermi surface manipulation by external magnetic field demonstrated for a prototypical ferromagnet
E. Młyńczak, M. Eschbach, S. Borek +12
We consider the details of the near-surface electronic band structure of a prototypical ferromagnet, Fe(001). Using high resolution angle-resolved photoemission spectroscopy we dem…
$\mbox{Bi}_{1}\mbox{Te}_{1}$: a dual topological insulator
Markus Eschbach, Martin Lanius, Chengwang Niu +15
A combined theoretical and experimental study reveals evidence for the dual topological insulating character of the stoichiometric natural superlattice phase $\mathrm{Bi_{1}Te_{1}}…
Photon Drag Effect in (BiSb)Te Three Dimensional Topological Insulators
H. Plank, L. E. Golub, S. Bauer +10
We report on the observation of a terahertz radiation induced photon drag effect in epitaxially grown - and -type (BiSb)Te three dimensional topolog…
Growth, characterization, and transport properties of ternary (Bi1-xSbx)2Te3 topological insulator layers
C. Weyrich, M. Drögeler, J. Kampmeier +12
Ternary (Bi1-xSbx)2Te3 films with an Sb content between 0 and 100% were deposited on a Si(111) substrate by means of molecular beam epitaxy. X-ray diffraction measurements confirm…