124 citations · 793 across the 15 of their papers we have counts for
19 papers
Ultrafast nonlinear Hall effect in black phosphorus
Maciej Dendzik, Andrea Marini, Samuel Beaulieu +9
The nonlinear Hall effect (NHE) is a recently discovered member of the Hall effect family in which the Hall voltage shows a nonlinear behavior when a transverse electric field is a…
Roadmap on Data-Centric Materials Science
Stefan Bauer, Peter Benner, Tristan Bereau +58
Science is and always has been based on data, but the terms "data-centric" and the "4th paradigm of" materials research indicate a radical change in how information is retrieved, h…
From structure mining to unsupervised exploration of atomic octahedral networks
R. Patrick Xian, Ryan J. Morelock, Ido Hadar +2
Understanding the spatial arrangements of atom-centered coordination octahedra is crucial for relating structures to properties for many materials families. Traditional case-by-cas…
Observation of multi-directional energy transfer in a hybrid plasmonic-excitonic nanostructure
Tommaso Pincelli, Thomas Vasileiadis, Shuo Dong +15
Hybrid plasmonic devices involve a nanostructured metal supporting localized surface plasmons to amplify light-matter interaction, and a non-plasmonic material to functionalize cha…
Orbital-resolved Observation of Singlet Fission
Alexander Neef, Samuel Beaulieu, Sebastian Hammer +8
Singlet fission may boost photovoltaic efficiency [by transforming a singlet exciton into two triplet excitons and thereby doubling the number of excited charge carriers. The prima…
Excited-state band structure mapping
M. Puppin, C. W. Nicholson, C. Monney +10
Angle-resolved photoelectron spectroscopy is an extremely powerful probe of materials to access the occupied electronic structure with energy and momentum resolution. However, it r…
Observation of ultrafast interfacial Meitner-Auger energy transfer in a van der Waals heterostructure
Shuo Dong, Samuel Beaulieu, Malte Selig +23
Atomically thin layered van der Waals heterostructures feature exotic and emergent optoelectronic properties. With growing interest in these novel quantum materials, the microscopi…
Scalable multicomponent spectral analysis for high-throughput data annotation
Rui Patrick Xian, Ralph Ernstorfer, Philipp Michael Pelz
Orchestrating parametric fitting of multicomponent spectra at scale is an essential yet underappreciated task in high-throughput quantification of materials and chemical compositio…
Machine Learning on Neutron and X-Ray Scattering
Zhantao Chen, Nina Andrejevic, Nathan Drucker +8
Neutron and X-ray scattering represent two state-of-the-art materials characterization techniques that measure materials' structural and dynamical properties with high precision. T…
Direct measurement of key exciton properties: energy, dynamics and spatial distribution of the wave function
Shuo Dong, Michele Puppin, Tommaso Pincelli +15
Excitons, Coulomb-bound electron-hole pairs, are the fundamental excitations governing the optoelectronic properties of semiconductors. While optical signatures of excitons have be…
A quantitative comparison of time-of-flight momentum microscopes and hemispherical analyzers for time- and angle-resolved photoemission spectroscopy experiments
J. Maklar, S. Dong, S. Beaulieu +7
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 photoelectron…
A machine learning route between band mapping and band structure
Rui Patrick Xian, Vincent Stimper, Marios Zacharias +9
Electronic band structure (BS) and crystal structure are the two complementary identifiers of solid state materials. While convenient instruments and reconstruction algorithms have…
Observation of an excitonic Mott transition through ultrafast core--conduction photoemission spectroscopy
Maciej Dendzik, R. Patrick Xian, Enrico Perfetto +19
Time-resolved soft-X-ray photoemission spectroscopy is used to simultaneously measure the ultrafast dynamics of core-level spectral functions and excited states upon excitation of…
Ultrafast Dynamical Lifshitz Transition
Samuel Beaulieu, Shuo Dong, Nicolas Tancogne-Dejean +9
Fermi surface is at the heart of our understanding of metals and strongly correlated many-body systems. An abrupt change in the Fermi surface topology, also called Lifshitz transit…
An open-source, end-to-end workflow for multidimensional photoemission spectroscopy
Rui Patrick Xian, Yves Acremann, Steinn Ymir Agustsson +15
Characterization of the electronic band structure of solid state materials is routinely performed using photoemission spectroscopy. Recent advancements in short-wavelength light so…
Evidence of large polarons in photoemission band mapping of the perovskite semiconductor CsPbBr
M. Puppin, S. Polishchuk, N. Colonna +16
Lead-halide perovskite (LHP) semiconductors are emergent optoelectronic materials with outstanding transport properties which are not yet fully understood. We find signatures of la…
Time- and momentum-resolved photoemission studies using time-of-flight momentum microscopy at a free-electron laser
Dmytro Kutnyakhov, Rui Patrick Xian, Maciej Dendzik +38
Time-resolved photoemission with ultrafast pump and probe pulses is an emerging technique with wide application potential. Real-time recording of non-equilibrium electronic process…
Multidimensional Contrast Limited Adaptive Histogram Equalization
Vincent Stimper, Stefan Bauer, Ralph Ernstorfer +2
Contrast enhancement is an important preprocessing technique for improving the performance of downstream tasks in image processing and computer vision. Among the existing approache…
Symmetry-guided nonrigid registration: the case for distortion correction in multidimensional photoemission spectroscopy
Rui Patrick Xian, Laurenz Rettig, Ralph Ernstorfer
Image symmetrization is an effective strategy to correct symmetry distortion in experimental data for which symmetry is essential in the subsequent analysis. In the process, a coor…