Publications

2025

[67] J. T. Weber et al., All-Optical Stochastic Switching of Magnetization Textures in Fe3Sn2, arXiv:2503.05660.

[66] A. Schr?der, A. Wendeln, J. T. Weber, M. Mukai, Y. Kohno, and S. Sch?fer, Laser-Driven Cold-Field Emission Source for Ultrafast Transmission Electron Microscopy, arXiv:2410.23961.

[65] N. Müller, G. Vosse, F. Evers, and S. Sch?fer, Inelastic Electron-Light Scattering at Dielectric Thin Films, arXiv:2405.11495.

[64] N. Müller, S. El Kabil, G. Vosse, L. Hansen, C. Rathje, and S. Sch?fer, Spectrally Resolved Free Electron-Light Coupling Strength in a Transition Metal Dichalcogenide, arXiv:2405.12017.

[63] J. T. Weber, N. Müller, A. Schr?der, and S. Sch?fer, Visualizing Standing Light Waves in Continuous-Beam Transmission Electron Microscopy, ACS Photonics 12, 819 (2025). ?

2024

[62] S. Sch?fer, S. Heiles, R. Sch?fer, On the dipole moment distribution of rigid symmetric rotors. J. Chem. Phys. 161, 044312 (2024).

[61] J. T. Weber, S. Sch?fer, Electron imaging of nanoscale charge distributions induced by femtosecond light pulses. Nano Lett. 24, 5746 (2024).

[60] A. Ungeheuer, N. Bach, M. T. Mir, A. S. Hassanien, L. N?ding, T. Baumert, S. Sch?fer, A. Senftleben. Coherent acoustic phonons in coupled hexagonal boron nitride-graphite heterostructure. Struct. Dyn. 11, 014501 (2024).

[59] A. Schr?der, Chr. Rathje, L. van Velzen, M. Kelder, S. Sch?fer, Improving the temporal resolution of event-based electron detectors using neural network cluster analysis. Ultramicroscopy 256, 113881?(2023).

2023

[58] Chr. Rathje, R. von Seggern, L. A. Gr?per, J. Kredl, J. Walowski, M. Münzenberg, S. Sch?fer.?Coupling broadband terahertz dipoles to microscale resonators. ACS Photonics 10, 3467 (2023).

[57] N. Müller, S. Sch?fer. Of Electrons and Photons, News and Views: Of electrons and photons. Nature Physics 19, 1239 (2023).

2022

[56] N. Bach, A. Feist, M. M?ller, C. Ropers, S. Sch?fer, Tailored nanophononic wavefield in a patterned bilayer system probed by ultrafast convergent beam electron diffraction. Structural Dynamics 9, 034301 (2022).

[55]?D. Pareek, M. A. Gonzalez, N. Grewo, M. L. Jan?en, K. Arunakiri, K. Luqman Alimi, M. Silies, J. Parisi, L. Gütay, S. Sch?fer.?Large-Area Growth of MoS2/WS2 Heterostructures by a sequential atomic layer deposition and spin-coating approach. Adv. Mater. Interfaces 9, 2200816 (2022).

[54]?C. Lattyak, M. Vehse, M. A. Gonzalez, D. Pareek, L. Gütay, S. Sch?fer, C. Agert.?Optoelectronic properties of MoS2?in proximity to carrier selective metal oxides. Adv. Opt. Mater. 10, 2102226 (2022).

2021

[53]?A. Hariharan,?S. Sch?fer, S. J. Heise.?Decay of excess carriers in a two-defect model semiconductor: A time-resolved photoluminescence study.?J. Appl. Phys.?130, 235702 (2021).

[52] H. Ahmed, V. Solovyeva, M. A. Gonzalez, M. Elshabasi,?M. Richter, D. Pareek, S. J. Heise, M. St?lzel, A. Weber, Th. Dalibor, S. Sch?fer, J. Parisi. Impact of the buffer/absorber interface on the?metastability of fill factor temperature coefficients in CIGSSe solar cells. Adv. Mat. Interfaces.?18, 2100778 (2021).

[51]?N. Bach, S. Sch?fer. Ultrafast strain propagation and acoustic resonances in nanoscale bilayer systems. Structural Dynamics 8, 035101 (2021).

[50]?D. Pareek, K. G. Roach, M. A. Gonzalez, L. Büsing, J. Parisi, L. Gütay, S. Sch?fer, Micro-patterned deposition of MoS2 ultrathin-films by a controlled droplet dragging approach. Scientific Reports,?11, 13993 (2021).?

[49]?T. Harvey, N. Rubiano, J. H. Gaida, M. M?ller, A. Feist, S. Sch?fer, C. Ropers, Ultrafast electron microscopy for probing magnetic dynamics. MRS Bulletin 46, 711 (2021).

[48]?M. A. Gonzalez, D. Pareek, L. Büsing, M. Beer, J. Parisi, S. Sch?fer, L. Gütay, Rapid formation of large area MoS2 monolayers by a parameter resilient atomic layer deposition approach, APL Materials 9, 051122 (2021).

[47]?H. Ahmed, M. Elshabasi, J. Ohland, M. St?lzel, A. Weber, R. Lechner, Th. Dalibor, J. Parisi, S. Sch?fer, S. J. Heise,?Temperature coefficient characterization of CIGSSe solar cells with layer modifications.?Solar Energy Materials and Solar Cells,?225,?111059 (2021).

[46]?N. Müller, V. Hock, C. Rathje, H. Koch, S. Sch?fer, Broadband coupling of fast electrons to high-Q whispering gallery mode resonators. ACS Photonics 8 1569-1575 (2021).

2020

[45]?A. Feist, S.V. Yalunin, S. Sch?fer, C. Ropers, High-purity free-electron momentum states prepared by three-dimensional optical phase modulation. Phys. Rev. Research 2, 043227 (2020).

[44]?P. Dombi, Z. Pápa, J. Vogelsang, S. V. Yalunin, M. Sivis, G. Herink, S. Sch?fer, P. Gross, C. Ropers, Ch. Lienau. Strong-field nano-optics. Rev. Mod. Phys. 92, 025003 (2020).

[43]?M. M?ller, J.H. Gaida, S. Sch?fer, C. Ropers. Few-nm tracking of current-driven magnetic vortex orbits using ultrafast Lorentz microscopy. Communications Physics 3, 1-7 (2020).

[42] K. Eickhoff,?Chr. Rathje,?D. K?hnke,?S. Kerbstadt,?L. Englert,?T. Bayer,?S. Sch?fer?and?M. Wollenhaupt.?Orbital angular momentum superposition states in transmission electron microscopy and bichromatic multiphoton ionization. New. J. Phys. 22, 103045 (2020).

2019

[41] N. Bach, T. Domr?se, A. Feist, T. Rittmann, S. Strauch, C. Ropers, S. Sch?fer. Coulomb interactions in high-coherence femtosecond electron pulses from tip emitters. Struct. Dyn. 6, 014301 (2019).

[40] D. Pareek, M. A. Gonzalez, J. Zohrabian, M. H. Sayed, V. Steenhoff, C. Lattyak,? M. Vehse,? C. Agert, J. Parisi ? S. Sch?fer, L. Gütay. A vapor-phase-assisted growth route for large-scale uniform deposition of MoS2 monolayer films. RSC Advances 9, 107-113 (2019).

2018

[39] N. Rubiano da Silva, M. M?ller, A. Feist, H. Ulrichs, C. Ropers, S. Sch?fer. Nanoscale mapping of ultrafast magnetization dynamics with femtosecond Lorentz microscopy. Phys. Rev. X 8, 031052 (2018).

[38] A. Feist, G. Storeck, S. Sch?fer, C. Ropers.?Structural dynamics probed by high-coherence electron pulses. MRS Bulletin 43, 505 (2018).

[37] A. Feist, N. Rubiano da Silva, W. Liang, C. Ropers, S. Sch?fer. Nanoscale diffractive probing of strain dynamics in ultrafast transmission electron microscopy. Struct. Dyn. 5, 014302 (2018).

[36] S. Vogelgesang, G. Storeck, S. Schramm, K. Rossnagel, S. Sch?fer, C. Ropers. Phase ordering of charge density waves traced by ultrafast low-energy electron diffraction. Nature Physics 14, 184 (2018).

2017

[35] O. Kfir, S. Zayko, C. Nolte, M. Sivis, M. M?ller, B. Hebler, S. S. P. K. Arekapudi, D. Steil, S. Sch?fer, M. Albrecht, O. Cohen, S. Mathias, C. Ropers.