Time-resolved ARPES studies of quantum materials

F Boschini, M Zonno, A Damascelli - Reviews of Modern Physics, 2024 - APS
Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …

Prediction and observation of an antiferromagnetic topological insulator

MM Otrokov, II Klimovskikh, H Bentmann, D Estyunin… - Nature, 2019 - nature.com
Magnetic topological insulators are narrow-gap semiconductor materials that combine non-
trivial band topology and magnetic order. Unlike their nonmagnetic counterparts, magnetic …

Momentum-Resolved Observation of Exciton Formation Dynamics in Monolayer WS2

R Wallauer, R Perea-Causin, L Münster, S Zajusch… - Nano …, 2021 - ACS Publications
The dynamics of momentum-dark exciton formation in transition metal dichalcogenides is
difficult to measure experimentally, as many momentum-indirect exciton states are not …

Tracing orbital images on ultrafast time scales

R Wallauer, M Raths, K Stallberg, L Münster… - Science, 2021 - science.org
Frontier orbitals determine fundamental molecular properties such as chemical reactivities.
Although electron distributions of occupied orbitals can be imaged in momentum space by …

[HTML][HTML] Time-and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser

D Kutnyakhov, RP Xian, M Dendzik, M Heber… - Review of Scientific …, 2020 - pubs.aip.org
Time-resolved photoemission with ultrafast pump and probe pulses is an emerging
technique with wide application potential. Realtime recording of nonequilibrium electronic …

Revealing hidden orbital pseudospin texture with time-reversal dichroism in photoelectron angular distributions

S Beaulieu, J Schusser, S Dong, M Schüler, T Pincelli… - Physical Review Letters, 2020 - APS
We performed angle-resolved photoemission spectroscopy (ARPES) of bulk 2H-WSe 2 for
different crystal orientations linked to each other by time-reversal symmetry. We introduce a …

[HTML][HTML] A quantitative comparison of time-of-flight momentum microscopes and hemispherical analyzers for time-and angle-resolved photoemission spectroscopy …

J Maklar, S Dong, S Beaulieu, T Pincelli… - Review of Scientific …, 2020 - pubs.aip.org
Time-of-flight-based momentum microscopy has a growing presence in photoemission
studies, as it enables parallel energy-and momentum-resolved acquisition of the full …

[HTML][HTML] Time-resolved momentum microscopy with a 1 MHz high-harmonic extreme ultraviolet beamline

M Keunecke, C Möller, D Schmitt, H Nolte… - Review of Scientific …, 2020 - pubs.aip.org
Recent progress in laser-based high-repetition rate extreme ultraviolet (EUV) light sources
and multidimensional photoelectron spectroscopy enables the build-up of a new generation …

[HTML][HTML] Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy

S Beaulieu, M Schüler, J Schusser, S Dong… - npj quantum …, 2021 - nature.com
The momentum-dependent orbital character in crystalline solids, referred to as orbital
texture, is of capital importance in the emergence of symmetry-broken collective phases …

[HTML][HTML] Imaging properties of hemispherical electrostatic energy analyzers for high resolution momentum microscopy

C Tusche, YJ Chen, CM Schneider, J Kirschner - Ultramicroscopy, 2019 - Elsevier
Hemispherical deflection analyzers are the most widely used energy filters for state-of-the-
art electron spectroscopy. Due to the high spherical symmetry, they are also well suited as …