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Electron-lattice-spin correlations and many-body phenomena in 2D semiconductors and related heterostructures

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Publications

Observation of an Excitonic Mott Transition Through Ultrafast Core- cum -Conduction Photoemission Spectroscopy

Author(s): Maciej Dendzik, R. Patrick Xian, Enrico Perfetto, Davide Sangalli, Dmytro Kutnyakhov, Shuo Dong, Samuel Beaulieu, Tommaso Pincelli, Federico Pressacco, Davide Curcio, Steinn Ymir Agustsson, Michael Heber, Jasper Hauer, Wilfried Wurth, Günter Brenner, Yves Acremann, Philip Hofmann, Martin Wolf, Andrea Marini, Gianluca Stefanucci, Laurenz Rettig, Ralph Ernstorfer
Published in: Physical Review Letters, 125/9, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.125.096401

Ultrafast dynamical Lifshitz transition

Author(s): Samuel Beaulieu, Shuo Dong, Nicolas Tancogne-Dejean, Maciej Dendzik, Tommaso Pincelli, Julian Maklar, R. Patrick Xian, Michael A. Sentef, Martin Wolf, Angel Rubio, Laurenz Rettig, Ralph Ernstorfer
Published in: Science Advances, 7/17, 2021, Page(s) eabd9275, ISSN 2375-2548
Publisher: AAAS
DOI: 10.1126/sciadv.abd9275

Direct measurement of key exciton properties: Energy, dynamics, and spatial distribution of the wave function

Author(s): Shuo Dong, Michele Puppin, Tommaso Pincelli, Samuel Beaulieu, Dominik Christiansen, Hannes Hübener, Christopher W. Nicholson, Rui Patrick Xian, Maciej Dendzik, Yunpei Deng, Yoav William Windsor, Malte Selig, Ermin Malic, Angel Rubio, Andreas Knorr, Martin Wolf, Laurenz Rettig, Ralph Ernstorfer
Published in: Natural Sciences, 1/1, 2021, ISSN 2698-6248
Publisher: Wiley
DOI: 10.1002/ntls.10010

Revealing momentum-dependent electron-phonon and phonon-phonon coupling in complex materials with ultrafast electron diffuse scattering.

Author(s): Hermann A. Dürr; Ralph Ernstorfer; Bradley J. Siwick
Published in: MRS Bulletin, 8, 2021, ISSN 0883-7694
Publisher: Materials Research Society
DOI: 10.1557/s43577-021-00156-7

Efficient First-Principles Methodology for the Calculation of the All-Phonon Inelastic Scattering in Solids.

Author(s): Marios Zacharias; Hélène Seiler; Fabio Caruso; Daniela Zahn; Feliciano Giustino; Pantelis C. Kelires; Ralph Ernstorfer
Published in: Physical Review Letters, 10, 2021, ISSN 1079-7114
Publisher: APS
DOI: 10.1103/physrevlett.127.207401

Revealing Hidden Orbital Pseudospin Texture with Time-Reversal Dichroism in Photoelectron Angular Distributions

Author(s): S. Beaulieu, J. Schusser, S. Dong, M. Schüler, T. Pincelli, M. Dendzik, J. Maklar, A. Neef, H. Ebert, K. Hricovini, M. Wolf, J. Braun, L. Rettig, J. Minár, R. Ernstorfer
Published in: Physical Review Letters, 125/21, 2020, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.125.216404

Nuclear dynamics of singlet exciton fission in pentacene single crystals

Author(s): Hélène Seiler, Marcin Krynski, Daniela Zahn, Sebastian Hammer, Yoav William Windsor, Thomas Vasileiadis, Jens Pflaum, Ralph Ernstorfer, Mariana Rossi, Heinrich Schwoerer
Published in: Science Advances, 7/26, 2021, Page(s) eabg0869, ISSN 2375-2548
Publisher: AAAS
DOI: 10.1126/sciadv.abg0869

Machine learning on neutron and x-ray scattering and spectroscopies

Author(s): Zhantao Chen; Nina Andrejevic; Nathan Drucker; Nathan Drucker; Thanh D. Nguyen; R. Patrick Xian; Tess Smidt; Yao Wang; Ralph Ernstorfer; D. Alan Tennant; Maria K. Y. Chan; Mingda Li
Published in: Chemical Physics Reviews, 6, 2021, ISSN 2688-4070
Publisher: AIP
DOI: 10.1063/5.0049111

Excited-state band structure mapping

Author(s): Puppin, M.; Nicholson, C. W.; Monney, C.; Deng, Y.; Xian, R. P.; Feldl, J.; Dong, S.; Dominguez, A.; Hübener, H.; Rubio, A.; Wolf, M.; Rettig, L.; Ernstorfer, R.
Published in: Physical Review B, 14, 2022, ISSN 2469-9950
Publisher: APS
DOI: 10.1103/physrevb.105.075417

Polarization-Modulated Angle-Resolved Photoemission Spectroscopy: Toward Circular Dichroism without Circular Photons and Bloch Wave-function Reconstruction

Author(s): Michael Schüler; Tommaso Pincelli; Shuo Dong; Thomas P. Devereaux; Martin Wolf; Laurenz Rettig; Ralph Ernstorfer; Samuel Beaulieu
Published in: Physical Review X, 12, 2022, ISSN 2160-3308
Publisher: American Physical Society
DOI: 10.1103/physrevx.12.011019

Wave-Mechanical Electron-Optical Modeling of Field-Emission Electron Sources

Author(s): Faruk Krečinić, Ralph Ernstorfer
Published in: Physical Review Applied, 15/6, 2021, ISSN 2331-7019
Publisher: American Physical Society
DOI: 10.1103/physrevapplied.15.064031

Ultrafast lattice dynamics and electron-phonon coupling in platinum extracted with a global fitting approach for time-resolved polycrystalline diffraction data.

Author(s): Daniela Zahn; Hélène Seiler; Yoav William Windsor; Ralph Ernstorfer
Published in: Structural Dynamics, 8, 2021, ISSN 2329-7778
Publisher: AIP
DOI: 10.1063/4.0000120

A quantitative comparison of time-of-flight momentum microscopes and hemispherical analyzers for time- and angle-resolved photoemission spectroscopy experiments

Author(s): J. Maklar, S. Dong, S. Beaulieu, T. Pincelli, M. Dendzik, Y. W. Windsor, R. P. Xian, M. Wolf, R. Ernstorfer, L. Rettig
Published in: Review of Scientific Instruments, 91/12, 2020, Page(s) 123112, ISSN 0034-6748
Publisher: American Institute of Physics
DOI: 10.1063/5.0024493

Lattice dynamics and ultrafast energy flow between electrons, spins, and phonons in a 3d ferromagnet

Author(s): Daniela Zahn, Florian Jakobs, Yoav William Windsor, Hélène Seiler, Thomas Vasileiadis, Tim A. Butcher, Yingpeng Qi, Dieter Engel, Unai Atxitia, Jan Vorberger, Ralph Ernstorfer
Published in: Physical Review Research, 3/2, 2021, ISSN 2643-1564
Publisher: American Physical Society
DOI: 10.1103/physrevresearch.3.023032

Generation and Evolution of Spin-, Valley-, and Layer-Polarized Excited Carriers in Inversion-Symmetric WSe 2

Author(s): R. Bertoni, C. W. Nicholson, L. Waldecker, H. Hübener, C. Monney, U. De Giovannini, M. Puppin, M. Hoesch, E. Springate, R. T. Chapman, C. Cacho, M. Wolf, A. Rubio, R. Ernstorfer
Published in: Physical Review Letters, 117/27, 2016, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/PhysRevLett.117.277201

Momentum-Resolved View of Electron-Phonon Coupling in Multilayer WSe 2

Author(s): L. Waldecker, R. Bertoni, H. Hübener, T. Brumme, T. Vasileiadis, D. Zahn, A. Rubio, R. Ernstorfer
Published in: Physical Review Letters, 119/3, 2017, Page(s) 036803, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/PhysRevLett.119.036803

Terahertz Compression of Electron Pulses at a Planar Mirror Membrane

Author(s): Dominik Ehberger, Kathrin J. Mohler, Thomas Vasileiadis, Ralph Ernstorfer, Lutz Waldecker, Peter Baum
Published in: Physical Review Applied, 11/2, 2019, Page(s) 024034, ISSN 2331-7019
Publisher: APS
DOI: 10.1103/physrevapplied.11.024034

Time- and angle-resolved photoemission spectroscopy of solids in the extreme ultraviolet at 500 kHz repetition rate

Author(s): M. Puppin, Y. Deng, C. W. Nicholson, J. Feldl, N. B. M. Schröter, H. Vita, P. S. Kirchmann, C. Monney, L. Rettig, M. Wolf, R. Ernstorfer
Published in: Review of Scientific Instruments, 90/2, 2019, Page(s) 023104, ISSN 0034-6748
Publisher: American Institute of Physics
DOI: 10.1063/1.5081938

Ultrafast Heat Flow in Heterostructures of Au Nanoclusters on Thin Films: Atomic Disorder Induced by Hot Electrons

Author(s): Thomas Vasileiadis, Lutz Waldecker, Dawn Foster, Alessandra Da Silva, Daniela Zahn, Roman Bertoni, Richard E. Palmer, Ralph Ernstorfer
Published in: ACS Nano, 12/8, 2018, Page(s) 7710-7720, ISSN 1936-0851
Publisher: American Chemical Society
DOI: 10.1021/acsnano.8b01423

Symmetry-guided nonrigid registration: The case for distortion correction in multidimensional photoemission spectroscopy

Author(s): R. Patrick Xian, Laurenz Rettig, Ralph Ernstorfer
Published in: Ultramicroscopy, 202, 2019, Page(s) 133-139, ISSN 0304-3991
Publisher: Elsevier BV
DOI: 10.1016/j.ultramic.2019.04.004

Ultrafast rotational motions of supported nanoclusters probed by electron diffraction

Author(s): Thomas Vasileiadis, Emmanuel N. Skountzos, Dawn Foster, Shawn P. Coleman, Daniela Zahn, Faruk Krečinić, Vlasis G. Mavrantzas, Richard E. Palmer, Ralph Ernstorfer
Published in: Nanoscale Horizons, 2019, ISSN 2055-6756
Publisher: Royal Society of Chemsitry
DOI: 10.1039/c9nh00031c

Anisotropic Nonequilibrium Lattice Dynamics of Black Phosphorus

Author(s): Daniela Zahn, Patrick-Nigel Hildebrandt, Thomas Vasileiadis, Yoav William Windsor, Yingpeng Qi, Hélène Seiler, Ralph Ernstorfer
Published in: Nano Letters, 20/5, 2020, Page(s) 3728-3733, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.0c00734

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

Author(s): D. Kutnyakhov, R. P. Xian, M. Dendzik, M. Heber, F. Pressacco, S. Y. Agustsson, L. Wenthaus, H. Meyer, S. Gieschen, G. Mercurio, A. Benz, K. Bühlman, S. Däster, R. Gort, D. Curcio, K. Volckaert, M. Bianchi, Ch. Sanders, J. A. Miwa, S. Ulstrup, A. Oelsner, C. Tusche, Y.-J. Chen, D. Vasilyev, K. Medjanik, G. Brenner, S. Dziarzhytski, H. Redlin, B. Manschwetus, S. Dong, J. Hauer, L. Rettig, F. Diek
Published in: Review of Scientific Instruments, 91/1, 2020, Page(s) 013109, ISSN 0034-6748
Publisher: American Institute of Physics
DOI: 10.1063/1.5118777

Intrinsic energy flow in laser-excited 3$d$ ferromagnets

Author(s): Zahn, D.; Jakobs, F.; Seiler, H.; Butcher, T.; Engel, D.; Vorberger, J.; Atxitia, U.; Windsor, Y.; Ernstorfer, R.
Published in: Physical Review Research, 1, 2022, ISSN 2643-1564
Publisher: APS
DOI: 10.1103/physrevresearch.4.013104

Accessing the Anisotropic Nonthermal Phonon Populations in Black Phosphorus

Author(s): Hélène Seiler, Daniela Zahn, Marios Zacharias, Patrick-Nigel Hildebrandt, Thomas Vasileiadis, Yoav William Windsor, Yingpeng Qi, Christian Carbogno, Claudia Draxl, Ralph Ernstorfer, Fabio Caruso
Published in: Nano Letters, 21/14, 2021, Page(s) 6171-6178, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.1c01786

Multiphonon diffuse scattering in solids from first principles: Application to layered crystals and two-dimensional materials

Author(s): Marios Zacharias; Hélène Seiler; Fabio Caruso; Daniela Zahn; Feliciano Giustino; Pantelis C. Kelires; Ralph Ernstorfer
Published in: Physical Review B, 9, 2021, ISSN 1095-3795
Publisher: American Physical Society
DOI: 10.1103/physrevb.104.205109

Coherent Modulation of Quasiparticle Scattering Rates in a Photoexcited Charge-Density-Wave System

Author(s): J. Maklar, M. Schüler, Y. W. Windsor, C. W. Nicholson, M. Puppin, P. Walmsley, I. R. Fisher, M. Wolf, R. Ernstorfer, M. A. Sentef, L. Rettig
Published in: Physical Review Letters, 2022, ISSN 1079-7114
Publisher: APS
DOI: 10.1103/physrevlett.128.026406

Nonequilibrium charge-density-wave order beyond the thermal limit

Author(s): J. Maklar, Y. W. Windsor, C. W. Nicholson, M. Puppin, P. Walmsley, V. Esposito, M. Porer, J. Rittmann, D. Leuenberger, M. Kubli, M. Savoini, E. Abreu, S. L. Johnson, P. Beaud, G. Ingold, U. Staub, I. R. Fisher, R. Ernstorfer, M. Wolf, L. Rettig
Published in: Nature Communications, 12/1, 2021, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-021-22778-w

An open-source, end-to-end workflow for multidimensional photoemission spectroscopy

Author(s): R. Patrick Xian, Yves Acremann, Steinn Y. Agustsson, Maciej Dendzik, Kevin Bühlmann, Davide Curcio, Dmytro Kutnyakhov, Federico Pressacco, Michael Heber, Shuo Dong, Tommaso Pincelli, Jure Demsar, Wilfried Wurth, Philip Hofmann, Martin Wolf, Markus Scheidgen, Laurenz Rettig, Ralph Ernstorfer
Published in: Scientific Data, 7/1, 2020, ISSN 2052-4463
Publisher: Springer-Nature
DOI: 10.1038/s41597-020-00769-8

Exchange-Striction Driven Ultrafast Nonthermal Lattice Dynamics in NiO

Author(s): Y. W. Windsor, D. Zahn, R. Kamrla, J. Feldl, H. Seiler, C.-T. Chiang, M. Ramsteiner, W. Widdra, R. Ernstorfer, L. Rettig
Published in: Physical Review Letters, 126/14, 2021, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.126.147202

A machine learning route between band mapping and band structure

Author(s): Xian, Rui Patrick; Stimper, Vincent; Zacharias, Marios; Dong, Shuo; Dendzik, Maciej; Beaulieu, Samuel; Schölkopf, Bernhard; Wolf, Martin; Rettig, Laurenz; Carbogno, Christian; Bauer, Stefan; Ernstorfer, Ralph
Published in: arXiv, 2, 2020
Publisher: arxiv.org
DOI: 10.48550/arxiv.2005.10210

Time- and angle-resolved photoemission spectroscopy on bidimensional semiconductors with a 500 kHz extreme ultraviolet light source

Author(s): Michele Puppin
Published in: FU Berlin Repository, 2018
Publisher: Freie Universität Berlin

Theory of exciton dynamics in time-resolved ARPES: Intra- and intervalley scattering in two-dimensional semiconductors

Author(s): Dominik Christiansen, Malte Selig, Ermin Malic, Ralph Ernstorfer, Andreas Knorr
Published in: Physical Review B, 100/20, 2019, ISSN 2469-9950
Publisher: APS
DOI: 10.1103/physrevb.100.205401

Multidimensional Contrast Limited Adaptive Histogram Equalization

Author(s): Vincent Stimper, Stefan Bauer, Ralph Ernstorfer, Bernhard Scholkopf, Rui Patrick Xian
Published in: IEEE Access, 7, 2019, Page(s) 165437-165447, ISSN 2169-3536
Publisher: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2019.2952899