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

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

Autori: 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
Pubblicato in: Physical Review Letters, Numero 125/9, 2020, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.125.096401

Ultrafast dynamical Lifshitz transition

Autori: 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
Pubblicato in: Science Advances, Numero 7/17, 2021, Pagina/e eabd9275, ISSN 2375-2548
Editore: AAAS
DOI: 10.1126/sciadv.abd9275

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

Autori: 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
Pubblicato in: Natural Sciences, Numero 1/1, 2021, ISSN 2698-6248
Editore: Wiley
DOI: 10.1002/ntls.10010

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

Autori: Hermann A. Dürr; Ralph Ernstorfer; Bradley J. Siwick
Pubblicato in: MRS Bulletin, Numero 8, 2021, ISSN 0883-7694
Editore: 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.

Autori: Marios Zacharias; Hélène Seiler; Fabio Caruso; Daniela Zahn; Feliciano Giustino; Pantelis C. Kelires; Ralph Ernstorfer
Pubblicato in: Physical Review Letters, Numero 10, 2021, ISSN 1079-7114
Editore: APS
DOI: 10.1103/physrevlett.127.207401

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

Autori: 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
Pubblicato in: Physical Review Letters, Numero 125/21, 2020, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.125.216404

Nuclear dynamics of singlet exciton fission in pentacene single crystals

Autori: Hélène Seiler, Marcin Krynski, Daniela Zahn, Sebastian Hammer, Yoav William Windsor, Thomas Vasileiadis, Jens Pflaum, Ralph Ernstorfer, Mariana Rossi, Heinrich Schwoerer
Pubblicato in: Science Advances, Numero 7/26, 2021, Pagina/e eabg0869, ISSN 2375-2548
Editore: AAAS
DOI: 10.1126/sciadv.abg0869

Machine learning on neutron and x-ray scattering and spectroscopies

Autori: 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
Pubblicato in: Chemical Physics Reviews, Numero 6, 2021, ISSN 2688-4070
Editore: AIP
DOI: 10.1063/5.0049111

Excited-state band structure mapping

Autori: 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.
Pubblicato in: Physical Review B, Numero 14, 2022, ISSN 2469-9950
Editore: APS
DOI: 10.1103/physrevb.105.075417

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

Autori: Michael Schüler; Tommaso Pincelli; Shuo Dong; Thomas P. Devereaux; Martin Wolf; Laurenz Rettig; Ralph Ernstorfer; Samuel Beaulieu
Pubblicato in: Physical Review X, Numero 12, 2022, ISSN 2160-3308
Editore: American Physical Society
DOI: 10.1103/physrevx.12.011019

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

Autori: Faruk Krečinić, Ralph Ernstorfer
Pubblicato in: Physical Review Applied, Numero 15/6, 2021, ISSN 2331-7019
Editore: 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.

Autori: Daniela Zahn; Hélène Seiler; Yoav William Windsor; Ralph Ernstorfer
Pubblicato in: Structural Dynamics, Numero 8, 2021, ISSN 2329-7778
Editore: 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

Autori: J. Maklar, S. Dong, S. Beaulieu, T. Pincelli, M. Dendzik, Y. W. Windsor, R. P. Xian, M. Wolf, R. Ernstorfer, L. Rettig
Pubblicato in: Review of Scientific Instruments, Numero 91/12, 2020, Pagina/e 123112, ISSN 0034-6748
Editore: American Institute of Physics
DOI: 10.1063/5.0024493

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

Autori: Daniela Zahn, Florian Jakobs, Yoav William Windsor, Hélène Seiler, Thomas Vasileiadis, Tim A. Butcher, Yingpeng Qi, Dieter Engel, Unai Atxitia, Jan Vorberger, Ralph Ernstorfer
Pubblicato in: Physical Review Research, Numero 3/2, 2021, ISSN 2643-1564
Editore: 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

Autori: 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
Pubblicato in: Physical Review Letters, Numero 117/27, 2016, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/PhysRevLett.117.277201

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

Autori: L. Waldecker, R. Bertoni, H. Hübener, T. Brumme, T. Vasileiadis, D. Zahn, A. Rubio, R. Ernstorfer
Pubblicato in: Physical Review Letters, Numero 119/3, 2017, Pagina/e 036803, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/PhysRevLett.119.036803

Terahertz Compression of Electron Pulses at a Planar Mirror Membrane

Autori: Dominik Ehberger, Kathrin J. Mohler, Thomas Vasileiadis, Ralph Ernstorfer, Lutz Waldecker, Peter Baum
Pubblicato in: Physical Review Applied, Numero 11/2, 2019, Pagina/e 024034, ISSN 2331-7019
Editore: APS
DOI: 10.1103/physrevapplied.11.024034

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

Autori: 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
Pubblicato in: Review of Scientific Instruments, Numero 90/2, 2019, Pagina/e 023104, ISSN 0034-6748
Editore: 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

Autori: Thomas Vasileiadis, Lutz Waldecker, Dawn Foster, Alessandra Da Silva, Daniela Zahn, Roman Bertoni, Richard E. Palmer, Ralph Ernstorfer
Pubblicato in: ACS Nano, Numero 12/8, 2018, Pagina/e 7710-7720, ISSN 1936-0851
Editore: American Chemical Society
DOI: 10.1021/acsnano.8b01423

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

Autori: R. Patrick Xian, Laurenz Rettig, Ralph Ernstorfer
Pubblicato in: Ultramicroscopy, Numero 202, 2019, Pagina/e 133-139, ISSN 0304-3991
Editore: Elsevier BV
DOI: 10.1016/j.ultramic.2019.04.004

Ultrafast rotational motions of supported nanoclusters probed by electron diffraction

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

Anisotropic Nonequilibrium Lattice Dynamics of Black Phosphorus

Autori: Daniela Zahn, Patrick-Nigel Hildebrandt, Thomas Vasileiadis, Yoav William Windsor, Yingpeng Qi, Hélène Seiler, Ralph Ernstorfer
Pubblicato in: Nano Letters, Numero 20/5, 2020, Pagina/e 3728-3733, ISSN 1530-6984
Editore: 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

Autori: 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
Pubblicato in: Review of Scientific Instruments, Numero 91/1, 2020, Pagina/e 013109, ISSN 0034-6748
Editore: American Institute of Physics
DOI: 10.1063/1.5118777

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

Autori: Zahn, D.; Jakobs, F.; Seiler, H.; Butcher, T.; Engel, D.; Vorberger, J.; Atxitia, U.; Windsor, Y.; Ernstorfer, R.
Pubblicato in: Physical Review Research, Numero 1, 2022, ISSN 2643-1564
Editore: APS
DOI: 10.1103/physrevresearch.4.013104

Accessing the Anisotropic Nonthermal Phonon Populations in Black Phosphorus

Autori: Hélène Seiler, Daniela Zahn, Marios Zacharias, Patrick-Nigel Hildebrandt, Thomas Vasileiadis, Yoav William Windsor, Yingpeng Qi, Christian Carbogno, Claudia Draxl, Ralph Ernstorfer, Fabio Caruso
Pubblicato in: Nano Letters, Numero 21/14, 2021, Pagina/e 6171-6178, ISSN 1530-6984
Editore: 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

Autori: Marios Zacharias; Hélène Seiler; Fabio Caruso; Daniela Zahn; Feliciano Giustino; Pantelis C. Kelires; Ralph Ernstorfer
Pubblicato in: Physical Review B, Numero 9, 2021, ISSN 1095-3795
Editore: American Physical Society
DOI: 10.1103/physrevb.104.205109

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

Autori: 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
Pubblicato in: Physical Review Letters, 2022, ISSN 1079-7114
Editore: APS
DOI: 10.1103/physrevlett.128.026406

Nonequilibrium charge-density-wave order beyond the thermal limit

Autori: 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
Pubblicato in: Nature Communications, Numero 12/1, 2021, ISSN 2041-1723
Editore: Nature Publishing Group
DOI: 10.1038/s41467-021-22778-w

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

Autori: 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
Pubblicato in: Scientific Data, Numero 7/1, 2020, ISSN 2052-4463
Editore: Springer-Nature
DOI: 10.1038/s41597-020-00769-8

Exchange-Striction Driven Ultrafast Nonthermal Lattice Dynamics in NiO

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

A machine learning route between band mapping and band structure

Autori: 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
Pubblicato in: arXiv, Numero 2, 2020
Editore: 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

Autori: Michele Puppin
Pubblicato in: FU Berlin Repository, 2018
Editore: Freie Universität Berlin

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

Autori: Dominik Christiansen, Malte Selig, Ermin Malic, Ralph Ernstorfer, Andreas Knorr
Pubblicato in: Physical Review B, Numero 100/20, 2019, ISSN 2469-9950
Editore: APS
DOI: 10.1103/physrevb.100.205401

Multidimensional Contrast Limited Adaptive Histogram Equalization

Autori: Vincent Stimper, Stefan Bauer, Ralph Ernstorfer, Bernhard Scholkopf, Rui Patrick Xian
Pubblicato in: IEEE Access, Numero 7, 2019, Pagina/e 165437-165447, ISSN 2169-3536
Editore: Institute of Electrical and Electronics Engineers Inc.
DOI: 10.1109/access.2019.2952899

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