Overview of project B01

Local and Non-Local Relaxation Dynamics of Hot Carriers


This project exploits time- and angle resolved photoelectron emission spectroscopy in layered heterostructures, two-dimensional materials, and adsorbate systems in order to determine relaxation times of electrons excited by electromagnetic fields in the ultraviolett, visible, and infrared spectral range as external stimuli. While it is well established that excited electrons relax in weakly correlated materials in momentum space in the electronic band structure E(k) by coupling to other electrons and phonons via electron-electron and electron-phonon scattering, relaxation proceeds in general also in real space. Within this project we have already extended optical pump-probe experiments which analyse non-local electron dynamics excited by backside pumping to non-linear femtosecond time-resolved spectroscopy. This approach will be extended in the future from metallic heterostructures to further compounds and in addition from one- to two-dimensional transport effects.

Figure: Experimental scheme for time-resolved photoelectron spectroscopy upon back-side optical excitation



Yazin Beyazit, Florian Kühne, Detlef Diesing, Ping Zhou, Jesumony Jayabalan, Björn Sothmann and Uwe Bovensiepen
Ultrafast Electron Dynamics in Au/Fe/MgO(001) Analyzed by Au- and Fe-Selective Pumping in Time-Resolved Two-Photon Photoemission Spectroscopy: Separation of Excitations in Adjacent Metallic Layers
Phys. Rev. B 107, 085412 (2023)
DOI: 10.1103/PhysRevB.107.085412

Christopher Penschke, John Thomas, Cord Bertram, Angelos Michaelides, Karina Morgenstern, Peter Saalfrank and Uwe Bovensiepen
Hydration at Highly Crowded Interfaces
Phys. Rev. Lett. 130, 106202 (2023)
DOI: 10.1103/PhysRevLett.130.106202

Markus Heckschen, Yasin Beyazit, Elaheh Shomali, Florian Kühne, Jesumony Jayabalan, Ping Zhou, Detlef Diesing, Markus E. Gruner, Rossitza Pentcheva, Axel Lorke, Björn Sothmann and Uwe Bovensiepen
Spatio-Temporal Electron Propagation Dynamics in Au/Fe/MgO(001) in Nonequilibrium: Revealing Single Scattering Events and the Ballistic Limit
PRX Energy 2, 043009 (2023)
DOI: 10.1103/PRXEnergy.2.043009



Peter Kratzer, Laurenz Rettig, Irina Yu. Sklyadneva, Evgueni V. Chulkov and Uwe Bovensiepen
Relaxation of Photoexcited Hot Carriers Beyond Multitemperature Models: General Theory Description Verified by Experiments on Pb/Si(111)
Phys. Rev. Research 4, 033218 (2022)
DOI: 10.1103/PhysRevResearch.4.033218

Maximilian Mattern, Alexander von Reppert, Steffen Peer Zeuschner, Jan-Etienne Pudell, Florian Kühne, Detlef Diesing, Marc Herzog and Matias Bargheer
Electronic Energy Transport in Nanoscale Au/Fe Hetero-Structures in the Perspective of Ultrafast Lattice Dynamics
Appl. Phys. Lett. 120, 092401 (2022)
DOI: 10.1063/5.0080378

Florian Kühne, Yasin Beyazit, Björn Sothmann, Jesumony Jayabalan, Detlef Diesing, Ping Zhou and Uwe Bovensiepen
Ultrafast Transport and Energy Relaxation of Hot Electrons in Au/Fe/MgO(001) Heterostructures Analyzed by Linear Time-Resolved Photoelectron Spectroscopy
Phys. Rev. Res. 4, 033239 (2022)
DOI: 10.1103/PhysRevResearch.4.033239

Peter Elliott, Andrea Eschenlohr, Jinghao Chen, Sam Shallcross, Uwe Bovensiepen, John Kay Dewhurst and Sangeeta Sharma
Transient Spin Injection Efficiencies at Ferromagnet–Metal Interfaces
Adv. Mater. Interf. 9, 2201233 (2022)
DOI: 10.1002/admi.202201233



John Thomas, C. Bertram, János Daru, Jayita Patwari, I. Langguth, Ping Zhou, Dominik Marx, Karina Morgenstern and Uwe Bovensiepen
Competition Between Coulomb and van der Waals Interactions in Xe−Cs+ Aggregates on Cu(111) Surfaces
Phys. Rev. Lett. 127, 266802 (2021)
DOI: 10.1103/PhysRevLett.127.266802



Isabella Avigo, Friedemann Queisser, Ping Zhou, Manuel Ligges, Kai Rossnagel, Ralf Schützhold and Uwe Bovensiepen
Doublon Bottleneck in the Ultrafast Relaxation Dynamics of Hot Electrons in 1T−TaS2
Phys. Rev. Research 2, 022046(R) (2020)
DOI: 10.1103/PhysRevResearch.2.022046

Yasin Beyazit, J. Beckord, Ping Zhou, Jan-Philipp Meyburg, Florian Kühne, Detlef Diesing, Manuel Ligges and Uwe Bovensiepen
Local and Nonlocal Electron Dynamics of Au/Fe/MgO(001) Heterostructures Analyzed by Time-Resolved Two-Photon Photoemission Spectroscopy
Phys. Rev. Lett. 125, 076803 (2020)
DOI: 10.1103/PhysRevLett.125.076803



S. Freutel, J. D. Rameau, L. Rettig, I. Avigo, Manuel Ligges, Y. Yoshida, H. Eisaki, J. Schneeloch, R. D. Zhong, Z. J. Xu, G. D. Gu, Uwe Bovensiepen and P. D. Johnson
Optical Perturbation of the Hole Pockets in the Underdoped High-Tc Superconducting Cuprates
Phys. Rev. B 99, 081116(R) (2019)
DOI: 10.1103/PhysRevB.99.081116

Verena Tinnemann, Carla Streubühr, Bernd Hafke, Annika Kalus, Anja Hanisch-Blicharski, Manuel Ligges, Dietrich von der Linde, Uwe Bovensiepen and Michael Horn-von Hoegen
Ultrafast Electron Diffraction from a Bi(111) Surface: Impulsive Lattice Excitation and Debye Waller Analysis at Large Momentum Transfer
Struct. Dyn. 6, 035101 (2019)
DOI: 10.1063/1.5093637

Ludmilla Schumacher, Jesil Jose, David Janoschka, Pascal Dreher, Timothy J. Davis, Manuel Ligges, Renkai Li, Mianzhen Mo, Suji Park, Xiaozhe Shen, Stephen Weathersby, Jie Yang, Xijie Wang, Frank Meyer zu Heringdorf, Klaus Sokolowski-Tinten and Sebastian Schlücker
Precision Plasmonics with Monomers and Dimers of Spherical Gold Nanoparticles: Non-Equilibrium Dynamics at the Time and Space Limit
J. Phys. Chem. C 123, 13181 (2019)
DOI: 10.1021/acs.jpcc.9b01007

Verena Tinnemann, Carla Streubühr, Bernd Hafke, Tobias Witte, Annika Kalus, Anja Hanisch-Blicharski, Manuel Ligges, Ping Zhou, Dietrich von der Linde, Uwe Bovensiepen and Michael Horn-von Hoegen
Decelerated Lattice Excitation and Absence of Bulk Phonon Modes at Surfaces: Ultra-fast Electron Diffraction from Bi(111) Surface upon fs-Laser Excitation
Struct. Dyn. 6, 065101 (2019)
DOI: 10.1063/1.5128275

Arne Metzlaff and Andreas Wucher
Untersuchung der Wechselwirkung von Graphen unter keV-Argon-Ionen-Beschuss
6, (2019)
DOI: 10.17185/duepublico/81307



M. Ligges, Isabella Avigo, D. Golež, H.U.R. Strand, Y. Beyazit, K. Hanff, F. Diekmann, L. Stojchevska, M. Kalläne, P. Zhou, K. Rossnagel, M. Eckstein, P. Werner and U. Bovensiepen
Ultrafast Doublon Dynamics in Photoexcited 1T - TaS2
Phys. Rev. Lett. 120, 166401 (2018)
DOI: 10.1103/PhysRevLett.120.166401

Tatiana Konstantinova, Jonathan D. Rameau, Alexander H. Reid, Omadillo Abdurazakov, Lijun Wu, Renkai Li, Xiaozhe Shen, Genda Gu, Yuan Huang, Laurenz Rettig, Isabella Avigo, Manuel Ligges, James K. Freericks, Alexander F. Kemper, Hermann A. Dürr, Uwe Bovensiepen, Peter D. Johnson, Xijie Wang and Yimei Zhu
Nonequilibrium Electron and Lattice Dynamics of Strongly Correlated Bi2Sr2CaCu2O8+δ Single Crystals
Science Adv. 4, 7427 (2018)
DOI: 10.1126/sciadv.aap7427

Isabella Avigo, Ping Zhou, Matthias Kalläne, Kai Rossnagel, Uwe Bovensiepen and Manuel Ligges
Excitation and Relaxation Dynamics of the Photo-Perturbed Correlated Electron System 1T-TaS2
Appl. Sci. 9, 44 (2018)
DOI: 10.3390/app9010044



Nicolai ten Brinke, Manuel Ligges, Uwe Bovensiepen and Ralf Schützhold
Multiple Particle-Hole Pair Creation in the Harmonically Driven Fermi-Hubbard Model
Phys. Rev. B 95, 195123 (2017)
DOI: 10.1103/PhysRevB.95.195123

Klaus Sokolowski-Tinten, Xiaozhe Shen, Q. Zheng, Tyler F. Chase, Ryan N. Coffee, Martin Jerman, Renkai Li, Manuel Ligges, Igor V. Makasyuk, M. Mo, Alexander Hume Reid, Bärbel Rethfeld, Theodore Vecchione, Stephen P. Weathersby, Hermann A. Dürr and Xijie Wang
Electron-Lattice Energy Relaxation in Laser-Excited Thin-Film Au-Insulator Heterostructures Studied by Ultrafast MeV Electron Diffraction
Struct. Dyn. 4, 054501 (2017)
DOI: 10.1063/1.4995258

Tim Frigge, Bernd Hafke, Tobias Witte, Boris Krenzer, Carla Streubühr, Abdul Samad Syed, Vesna Mikšić Trontl, Isabella Avigo, Ping Zhou, Manuel Ligges, Dietrich von der Linde, Uwe Bovensiepen, Michael Horn-von Hoegen, Stefan Wippermann, Andreas Lücke, Simone Sanna, Uwe Gerstmann and Wolf Gerp Schmidt
Optically Excited Structural Transition in Atomic Wires on Surfaces at the Quantum Limit
Nature 544, 207 (2017)
DOI: 10.1038/nature21432



Isabella Avigo, Igor Vaskivskyi, Manuel Ligges, Matthias Kalläne, Kai Rossnagel, Ljupka Stojchevska, Dragan Mihailovia and Uwe Bovensiepen
Accessing and Probing of the Photo-Induced Hidden State in 1T -TaS2 with Time- and Angle-Resolved Photoemission Spectroscopy
Proc. SPIE 9931, Spintronics IX, 99313V (2016)
DOI: 10.1117/12.2239258