Seifert Lab THz Dynamics on Nanoscales

Papers

We develop and use novel approaches for terahertz time-domain spectroscopy capable of combining femtosecond temporal and nanometer spatial resolutions. These steps are key to explore ultrafast dynamics in complex nanomaterials on the spatiotemporal scales relevant for applications and fundamental insights.

Highlighted

Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
Nature Nanotechnology (2023)
Seifert et al.
The emerging field of orbitronics exploits the electron orbital momentum L. Compared to spin-polarized electrons, L may allow the transfer of magnetic information with considerably higher density over longer distances in more materials. However, direct experimental observation of L currents, their extended propagation lengths and their conversion into charge currents has remained challenging.
Tunable ultrabroadband hybrid terahertz emitter combining a spintronic and a GaSe source
Tunable ultrabroadband hybrid terahertz emitter combining a spintronic and a GaSe source
Applied Physics Letters (2024)
Alostaz,..., Seifert
Terahertz (THz) time-domain spectroscopy (TDS) is a sensitive approach to material characterization. It critically relies on a sufficiently large bandwidth, which is not straightforwardly available in typical THz-TDS systems that are often limited to below 3 THz. Here, we introduce a hybrid THz-source concept based on a spintronic THz emitter (STE).
Ultrafast electron heating as the dominant driving force of photoinduced terahertz spin currents
Ultrafast electron heating as the dominant driving force of photoinduced terahertz spin currents
ArXiv (2025)
Rouzegar,..., Seifert
Ultrafast spintronics strongly relies on the generation, transport, manipulation and detection of terahertz spin currents (TSCs). In F/HM stacks consisting of a ferromagnetic layer F and a heavy-metal layer HM, ultrafast spin currents are typically triggered by femtosecond optical laser pulses. A key open question is whether the initial step, optical excitation and injection of spin currents, can be controlled.

All Publications

2026 3
2025 10
2024 9
2023 12
2022 12
2021 9
2020 7
2019 3
2018 2
2017 6
2015 3
2011 1

2026

Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator ferromagnet heterostructures
Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator| ferromagnet heterostructures
Bierhance, G., In, C., Rongione, E., Rouzegar, R., Gueckstock, O., Longo, E., Baringthon, L., Reyren, N., Lebrun, R., George, J.-M., Tsipas, P., Wolf, M., Seifert, T.S., Mantovan, R., Jaffrès, H., Dimoulas, A., Kampfrath, T.
Physical Review Applied (2026)  ·  doi:10.1103/n1nw-2wyg
Spatiotemporal Terahertz Emission Nanoscopy of Spintronic Photocurrents
Spatiotemporal Terahertz Emission Nanoscopy of Spintronic Photocurrents
F Paries, R Rouzegar, J Cai, M Dai, F Selz, J Koelbel, G Lezier, D Molter, ...
arXiv preprint arXiv:2602. (2026)  ·  url:https://google.com/search?q=Spatiotemporal%20Terahertz%20Emission%20Nanoscopy%20of%20Spintronic%20Photocurrents
Terahertz magneto-photocurrents in the topological insulator BiSe probe its topological surface states
Terahertz magneto-photocurrents in the topological insulator BiSe probe its topological surface states
C In, G Bierhance, D Jain, TS Seifert, O Gueckstock, R Mantovan, S Oh, ...
arXiv preprint arXiv:2601. (2026)  ·  url:https://google.com/search?q=Terahertz%20magneto-photocurrents%20in%20the%20topological%20insulator%20BiSe%20probe%20its%20topological%20surface%20states

2025

Distortion-free sampling of ultrabroadband terahertz electric fields by interfacial spin accumulation
Distortion-free sampling of ultrabroadband terahertz electric fields by interfacial spin accumulation
Chekhov, Alexander L., Behovits, Yannic, Heitz, Julius J. F., Syskaki, Maria-Andromachi, Jaiswal, Samridh, Gueckstock, Oliver, Serrano, Bruno R., Ruge, Amon, Kredl, Jana, Wolf, Martin, Münzenberg, Markus, Jakob, Gerhard, Kläui, Mathias, Seifert, Tom S., Kampfrath, Tobias
Science Advances (2025)  ·  doi:10.1126/sciadv.adq7741
Influence of atomic-scale defects on coherent phonon excitations by THz near fields in an STM
Influence of atomic-scale defects on coherent phonon excitations by THz near fields in an STM
Rai, Vibhuti N., Sim, Junyoung, Faaber, Florian, Bogdanoff, Nils, Trishin, Sergey, Wiechers, Paul, Seifert, Tom S., Kampfrath, Tobias, Lotze, Christian, Franke, Katharina J.
Science Advances (2025)  ·  doi:10.1126/sciadv.adz6549
Terahertz switching of antiferromagnetic order by N eel spin-orbit torques
Terahertz switching of antiferromagnetic order by N\'eel spin-orbit torques
Y Behovits, AL Chekhov, A Ruge, R Rouzegar, BR Serrano, AP Fellows, ...
arXiv preprint arXiv:2512. (2025)  ·  url:https://google.com/search?q=Terahertz%20switching%20of%20antiferromagnetic%20order%20by%20N%5C%27eel%20spin-orbit%20torques
Hallmarks of Ballistic Terahertz Magnon Currents in an Antiferromagnetic Insulator
Hallmarks of Ballistic Terahertz Magnon Currents in an Antiferromagnetic Insulator
Qiu, Hongsong, Franke, Oliver, Tian, Yuanzhe, Kašpar, Zdeněk, Rouzegar, Reza, Gueckstock, Oliver, Wu, Ji, Zhu, Maguang, Jin, Biaobing, Xu, Yongbing, Seifert, Tom S., Wu, Di, Brouwer, Piet W., Kampfrath, Tobias
Physical Review Letters (2025)  ·  doi:10.1103/mk8h-yzkj
Femtosecond photocurrents by the Dresselhaus bulk spin-galvanic effect in an inversion-asymmetric ferromagnet
Femtosecond photocurrents by the Dresselhaus bulk spin-galvanic effect in an inversion-asymmetric ferromagnet
J Tong, Z Kaspar, A Alostaz, R Rouzegar, C In, T Titze, M Staabs, ...
arXiv preprint arXiv:2507. (2025)  ·  url:https://google.com/search?q=Femtosecond%20photocurrents%20by%20the%20Dresselhaus%20bulk%20spin-galvanic%20effect%20in%20an%20inversion-asymmetric%20ferromagnet
Ultrafast electron heating as the dominant driving force of photoinduced terahertz spin currents
Ultrafast electron heating as the dominant driving force of photoinduced terahertz spin currents
R Rouzegar, P Jimenez-Cavero, O Gueckstock, MA Wahada, Q Remy, ...
arXiv preprint arXiv:2507. (2025)  ·  url:https://google.com/search?q=Ultrafast%20electron%20heating%20as%20the%20dominant%20driving%20force%20of%20photoinduced%20terahertz%20spin%20currents
Efficient terahertz spin-to-charge current conversion in IrAl compounds
Efficient terahertz spin-to-charge current conversion in IrAl compounds
Tong, Junwei, Wang, Peng, Qiu, Hongsong, Seifert, Tom S., Kostanovski, Ilya, Parkin, Stuart S. P., Kampfrath, Tobias, Gueckstock, Oliver
Applied Physics Letters (2025)  ·  doi:10.1063/5.0272921
Terahertz Generation from a Spintronic Emitter Pumped by a Two-Optical-Cycle Cr: ZnS Oscillator
Terahertz Generation from a Spintronic Emitter Pumped by a Two-Optical-Cycle Cr: ZnS Oscillator
Aghakasiri, Mojtaba, Okazaki, Daiki, Steinleitner, Philipp, Schweinberger, Wolfgang, Potamianos, Dionysios, Gui, Yang, Sebesta, Aleksandar, Jahedi, Behnam Abbasvand, Seifert, Tom Sebastian, Kampfrath, Tobias, Tokita, Shigeki, Krausz, Ferenc, Weigel, Alexander
2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (2025)  ·  doi:10.1109/cleo/europe-eqec65582.2025.11109577
Efficient broadband terahertz generation by above band-gap excitation of the pyroelectric ZnSnN2
Efficient broadband terahertz generation by above band-gap excitation of the pyroelectric ZnSnN2
TS Seifert, H Hempel, O Gückstock, R Schneider, Q Remy, A Fioretti, ...
arXiv preprint arXiv:2506. (2025)  ·  url:https://google.com/search?q=Efficient%20broadband%20terahertz%20generation%20by%20above%20band-gap%20excitation%20of%20the%20pyroelectric%20ZnSnN2
Magnon-mediated terahertz spin transport in metallic Gd Pt stacks
Magnon-mediated terahertz spin transport in metallic Gd| Pt stacks
O Gueckstock, T Amrhein, B Andres, P Jiménez-Cavero, C Gahl, ...
arXiv preprint arXiv:2503. (2025)  ·  url:https://google.com/search?q=Magnon-mediated%20terahertz%20spin%20transport%20in%20metallic%20Gd%7C%20Pt%20stacks

2024

Accessing ultrafast spin-transport dynamics in copper using broadband terahertz spectroscopy
Accessing ultrafast spin-transport dynamics in copper using broadband terahertz spectroscopy
Jechumtál, Jiří, Rouzegar, Reza, Gueckstock, Oliver, Denker, Christian, Hoppe, Wolfgang, Remy, Quentin, Seifert, Tom S., Kubaščík, Peter, Woltersdorf, Georg, Brouwer, Piet W., Münzenberg, Markus, Kampfrath, Tobias, Nádvorník, Lukáš
Physical Review Letters (2024)  ·  doi:10.1103/physrevlett.132.226703
Terahertz Spin-Conductance Spectroscopy: Probing Coherent and Incoherent Ultrafast Spin Tunneling
Terahertz Spin-Conductance Spectroscopy: Probing Coherent and Incoherent Ultrafast Spin Tunneling
Nano Letters (2024)  ·  doi:10.1021/acs.nanolett.4c00498.s001
Optical damage thresholds of single-mode fiber-tip spintronic terahertz emitters
Optical damage thresholds of single-mode fiber-tip spintronic terahertz emitters
Paries, Felix, Selz, Felix, Lampin, Jean-Francois, Kolejak, Pierre, Lezier, Geoffrey, Tiercelin, Nicolas, Vanwolleghem, Mathias, Kampfrath, Tobias, Seifert, Tom, von Freymann, Georg, Molter, Daniel
Optica Open (2024)  ·  doi:10.1364/opticaopen.25541008.v1
Rotating spintronic terahertz emitter optimized for microjoule pump-pulse energies and megahertz repetition rates
Rotating spintronic terahertz emitter optimized for microjoule pump-pulse energies and megahertz repetition rates
Vaitsi, Alkisti, Sleziona, Vivien, Parra López, Luis E., Behovits, Yannic, Schulz, Fabian, Martín Sabanés, Natalia, Kampfrath, Tobias, Wolf, Martin, Seifert, Tom S., Müller, Melanie
Applied Physics Letters (2024)  ·  doi:10.1063/5.0214469
Local and Global Reciprocity in Orbital-Charge-Coupled Transport
Local and Global Reciprocity in Orbital-Charge-Coupled Transport
D Go, TS Seifert, T Kampfrath, K Ando, HW Lee, Y Mokrousov
arXiv preprint arXiv:2407. (2024)  ·  url:https://google.com/search?q=Local%20and%20Global%20Reciprocity%20in%20Orbital-Charge-Coupled%20Transport
Radiation hardness of ultrabroadband spintronic terahertz emitters: En-route to a space-qualified terahertz time-domain gas spectrometer
Radiation hardness of ultrabroadband spintronic terahertz emitters: En-route to a space-qualified terahertz time-domain gas spectrometer
Gueckstock, O., Stojanovic, N., Ha, Y., Hagelschuer, T., Denker, A., Kourkafas, G., Seifert, T. S., Kampfrath, T., Gensch, M.
Applied Physics Letters (2024)  ·  doi:10.1063/5.0196951
Tunable ultrabroadband hybrid terahertz emitter combining a spintronic and a GaSe source
Tunable ultrabroadband hybrid terahertz emitter combining a spintronic and a GaSe source
Alostaz, Afnan, Gueckstock, Oliver, Tong, Junwei, Kredl, Jana, In, Chihun, Münzenberg, Markus, Schneider, Claus M., Kampfrath, Tobias, Seifert, Tom S.
Applied Physics Letters (2024)  ·  doi:10.1063/5.0226564
Spintronic Frequency Conversion of Terahertz and Extreme-Ultraviolet Light Pulses
Spintronic Frequency Conversion of Terahertz and Extreme-Ultraviolet Light Pulses
Ilyakov, Igor, Kovalev, Sergey, Salikhov, Ruslan, Brataas, Arne, Carley, Robert E., Agarwal, Naman, Deinert, Jan-Christoph, Liu, Jia, Yaroslavtsev, Alexander, Foglia, Laura, Kurdi, Gabor, Mincigrucci, Riccardo, Principi, Emiliano, de Oliveira, Thales V.A.G., Ponomaryov, Alexey, Jakob, Gerhard, Kläui, Mathias, Seifert, T. S., Kampfrath, Tobias, Hellwig, Olav, Faßbender, Jürgen, Scherz, Andreas O., Gensch, Michael, Lindner, Jürgen
2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2024)  ·  doi:10.1109/irmmw-thz60956.2024.10697803
X-ray optical pulse arrival monitor based on spintronic THz emitters
X-ray optical pulse arrival monitor based on spintronic THz emitters
R Carley, L Mercadier, J Liu, L Le Guyader, M Teichmann, M Gensch, ...
European XFEL Users' Meeting (2024)  ·  url:https://google.com/search?q=X-ray%20optical%20pulse%20arrival%20monitor%20based%20on%20spintronic%20THz%20emitters

2023

The 2023 terahertz science and technology roadmap
The 2023 terahertz science and technology roadmap
A Leitenstorfer, AS Moskalenko, T Kampfrath, J Kono, E Castro-Camus, ...
Journal of Physics D: Applied Physics (2023)  ·  url:https://google.com/search?q=The%202023%20terahertz%20science%20and%20technology%20roadmap
Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
Seifert, Tom S., Go, Dongwook, Hayashi, Hiroki, Rouzegar, Reza, Freimuth, Frank, Ando, Kazuya, Mokrousov, Yuriy, Kampfrath, Tobias
Nature Nanotechnology (2023) (2023)  ·  doi:10.1038/s41565-023-01470-8
Broadband Spintronic Terahertz Source with Peak Electric Fields Exceeding 1.5 MV cm
Broadband Spintronic Terahertz Source with Peak Electric Fields Exceeding 1.5 MV/cm
Rouzegar, R., Chekhov, A.L., Behovits, Y., Serrano, B.R., Syskaki, M.A., Lambert, C.H., Engel, D., Martens, U., Münzenberg, M., Wolf, M., Jakob, G., Kläui, M., Seifert, T.S., Kampfrath, T.
Physical Review Applied (2023)  ·  doi:10.1103/physrevapplied.19.034018
Terahertz Néel spin-orbit torques drive nonlinear magnon dynamics in antiferromagnetic Mn2Au
Terahertz Néel spin-orbit torques drive nonlinear magnon dynamics in antiferromagnetic Mn2Au
Behovits, Y., Chekhov, A. L., Bodnar, S. Yu., Gueckstock, O., Reimers, S., Lytvynenko, Y., Skourski, Y., Wolf, M., Seifert, T. S., Gomonay, O., Kläui, M., Jourdan, M., Kampfrath, T.
Nature Communications (2023)  ·  doi:10.1038/s41467-023-41569-z
Terahertz Spin Current Dynamics in Antiferromagnetic Hematite
Terahertz Spin Current Dynamics in Antiferromagnetic Hematite
Qiu, Hongsong, Seifert, Tom S., Huang, Lin, Zhou, Yongjian, Kašpar, Zdeněk, Zhang, Caihong, Wu, Jingbo, Fan, Kebin, Zhang, Qi, Wu, Di, Kampfrath, Tobias, Song, Cheng, Jin, Biaobing, Chen, Jian, Wu, Peiheng
Advanced Science (2023)  ·  doi:10.1002/advs.202300512
Broadband spintronic detection of the absolute field strength of terahertz electromagnetic pulses
Broadband spintronic detection of the absolute field strength of terahertz electromagnetic pulses
Chekhov, A.L., Behovits, Y., Martens, U., Serrano, B.R., Wolf, M., Seifert, T.S., Münzenberg, M., Kampfrath, T.
Physical Review Applied (2023)  ·  doi:10.1103/physrevapplied.20.034037
Fiber-tip spintronic terahertz emitters
Fiber-tip spintronic terahertz emitters
F Paries, N Tiercelin, G Lezier, M Vanwolleghem, F Selz, MA Syskaki, ...
Optics express (2023)  ·  url:https://google.com/search?q=Fiber-tip%20spintronic%20terahertz%20emitters
Shot-noise limited detection of terahertz transients form spintronic emitters
Shot-noise limited detection of terahertz transients form spintronic emitters
Zagbayou, Bédi, Doiron, Étienne, Sirois, Frédéric, Seifert, Tom S., Kampfrath, Tobias, Seletskiy, Denis
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2023)  ·  doi:10.1109/irmmw-thz57677.2023.10298865
High-Power Operation of Spintronic Terahertz Emitters for THz-Field-Driven Scanning Probe Microscopy at MHz Repetition Rates
High-Power Operation of Spintronic Terahertz Emitters for THz-Field-Driven Scanning Probe Microscopy at MHz Repetition Rates
Vaitsi, Alkisti, Sleziona, Vivien, Lopéz, Luis E. Parra, Seifert, Tom S., Schulz, Fabian, Sabanés, Natalia Martín, Wolf, Martin, Kampfrath, Tobias, Müller, Melanie
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2023)  ·  doi:10.1109/irmmw-thz57677.2023.10299392
Time-Domain Spectroscopy for Space Exploration at Terahertz energy scales
Time-Domain Spectroscopy for Space Exploration at Terahertz energy scales
Ha, Yookyung, Woeste, Jonas, Gueckstock, Oliver, Kourkafas, Georgios, Petrovic, Jovana, Rabasovic, Mihailo, Krmpot, Aleksandar, Seifert, Tom S., Denker, Andrea, Kampfrath, Tobias, Stojanovic, Nikola, Gensch, Michael
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2023)  ·  doi:10.1109/irmmw-thz57677.2023.10299070
Spintronic Terahertz Emitter on a Fiber Tip
Spintronic Terahertz Emitter on a Fiber Tip
F Paries, N Tiercelin, G Lezier, M Vanwolleghem, F Selz, MA Syskaki, ...
2023 48th International Conference on Infrared, Millimeter, and Terahertz … (2023)  ·  url:https://google.com/search?q=Spintronic%20Terahertz%20Emitter%20on%20a%20Fiber%20Tip
Femtosecond laser spectroscopy for exploration of space
Femtosecond laser spectroscopy for exploration of space
Y Ha, O Gueckstock, G Kourfakas, J Petrović, M Rabasovic, A Krmpot, ...
PHOTONICA2023: 9th International School and Conference on Photonics: Book of … (2023)  ·  url:https://google.com/search?q=Femtosecond%20laser%20spectroscopy%20for%20exploration%20of%20space

2022

Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin-phonon interactions
Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin-phonon interactions
Rongione, E., Gueckstock, O., Mattern, M., Gomonay, O., Meer, H., Schmitt, C., Ramos, R., Saitoh, E., Sinova, J., Jaffrès, H., Mičica, M., Mangeney, J., Goennenwein, S. T. B., Geprägs, S., Kampfrath, T., Kläui, M., Bargheer, M., Seifert, T. S., Dhillon, S., Lebrun, R.
Nature Communications (2022)  ·  arxiv:2205.11965
Supplementary information: Electron paramagnetic resonance of alkali metal atoms and dimers on ultrathin MgO
Supplementary information: Electron paramagnetic resonance of alkali metal atoms and dimers on ultrathin MgO
American Chemical Society (2022)  ·  doi:10.1021/acs.nanolett.2c00980.s002
Supplemental Material for Transition of laser-induced terahertz spin currents from torque-to conduction-electron-mediated transport
Supplemental Material for Transition of laser-induced terahertz spin currents from torque-to conduction-electron-mediated transport
Jiménez-Cavero, Pilar, Gueckstock, Oliver, Nádvorník, Lukáš, Lucas, Irene, Seifert, Tom S., Wolf, Martin, Rouzegar, Reza, Brouwer, Piet W., Becker, Sven, Jakob, Gerhard, Kläui, Mathias, Guo, Chenyang, Wan, Caihua, Han, Xiufeng, Jin, Zuanming, Zhao, Hui, Wu, Di, Morellón, Luis, Kampfrath, Tobias
Physical Review B (2022)  ·  doi:10.1103/physrevb.105.184408
Average power scaling of THz spintronic emitters efficiently cooled in reflection geometry
Average power scaling of THz spintronic emitters efficiently cooled in reflection geometry
Vogel, Tim, Omar, Alan, Mansourzadeh, Samira, Wulf, Frank, Sabanés, Natalia Martín, Müller, Melanie, Seifert, Tom S., Weigel, Alexander, Jakob, Gerhard, Kläui, Mathias, Pupeza, Ioachim, Kampfrath, Tobias, Saraceno, Clara J.
Optics Express (2022)  ·  doi:10.1364/oe.453539
Ultrafast carrier dynamics in terahertz photoconductors and photomixers: beyond short-carrier-lifetime semiconductors
Ultrafast carrier dynamics in terahertz photoconductors and photomixers: beyond short-carrier-lifetime semiconductors
Lu, Ping-Keng, Fernandez Olvera, Anuar de Jesus, Turan, Deniz, Seifert, Tom Sebastian, Yardimci, Nezih Tolga, Kampfrath, Tobias, Preu, Sascha, Jarrahi, Mona
Nanophotonics (2022)  ·  doi:10.1515/nanoph-2021-0785
Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co2MnGa and Co2MnAl
Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co2MnGa and Co2MnAl
Bierhance, Genaro, Markou, Anastasios, Gueckstock, Oliver, Rouzegar, Reza, Behovits, Yannic, Chekhov, Alexander L., Wolf, Martin, Seifert, Tom S., Felser, Claudia, Kampfrath, Tobias
Applied Physics Letters (2022)  ·  doi:10.1063/5.0080308
Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
Gueckstock, O., Seeger, R. L., Seifert, T. S., Auffret, S., Gambarelli, S., Kirchhof, J. N., Bolotin, K. I., Baltz, V., Kampfrath, T., Nádvorník, L.
Applied Physics Letters (2022)  ·  doi:10.1063/5.0077868
Terahertz Spin to Charge Current Conversion in Stacks of Ferromagnets and the Transition Metal Dichalcogenide NbSe2
Terahertz Spin‐to‐Charge Current Conversion in Stacks of Ferromagnets and the Transition‐Metal Dichalcogenide NbSe2
Nádvorník, Lukáš, Gueckstock, Oliver, Braun, Lukas, Niu, Chengwang, Gräfe, Joachim, Richter, Gunther, Schütz, Gisela, Takagi, Hidenori, Zeer, Mahmoud, Seifert, Tom S., Kubaščík, Peter, Pandeya, Avanindra K., Anane, Abdelmadjid, Yang, Heejun, Bedoya‐Pinto, Amilcar, Parkin, Stuart S. P., Wolf, Martin, Mokrousov, Yuriy, Nakamura, Hiroyuki, Kampfrath, Tobias
Advanced Materials Interfaces (2022)  ·  doi:10.1002/admi.202201675
Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses
Ilyakov, I., Agarwal, N., Deinert, J.-C., Liu, J., Yaroslavtsev, A., Foglia, L., Kurdi, G., Mincigrucci, R., Principi, E., Jakob, G., Kläui, M., Seifert, T. S., Kampfrath, T., Kovalev, S., Carley, R. E., Scherz, A. O., Gensch, M.
Optica (2022)  ·  doi:10.1364/optica.453130
Efficient cooling of spintronic THz emitter in reflection geometry
Efficient cooling of spintronic THz emitter in reflection geometry
Vogel, Tim, Omar, Alan, Mansourzadeh, Samira, Wulf, Frank, Sabanes, Natalia Martin, Muller, Melanie, Seifert, Tom S., Weigel, Alexander, Jakob, Gerhard, Klaui, Mathias, Pupeza, Ioachim, Kampfrath, Tobias, Saraceno, Clara J.
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2022)  ·  doi:10.1109/irmmw-thz50927.2022.9895661
Harnessing ultrafast spin and charge currents for terahertz photonics
Harnessing ultrafast spin and charge currents for terahertz photonics
Seifert, Tom S.
Terahertz Photonics II (2022)  ·  doi:10.1117/12.2623929
High-Power Excitation of Spintronic THz Emitter in the Back-Cooled Reflection Geometry
High-Power Excitation of Spintronic THz Emitter in the Back-Cooled Reflection Geometry
Vogel, Tim, Omar, Alan, Mansourzadeh, Samira, Wulf, Frank, Sabanés, Natalia Martín, Müller, Melanie, Seifert, Tom, Weigel, Alexander, Jakob, Gerhard, Kläui, Mathias, Pupeza, Ioachim, Kampfrath, Tobias, Saraceno, Clara J.
Conference on Lasers and Electro-Optics (2022)  ·  doi:10.1364/cleo_si.2022.ss2c.7

2021

Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses
Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses
Seifert, Tom S., Cheng, Liang, Wei, Zhengxing, Kampfrath, Tobias, Qi, Jingbo
Appl. Phys. Lett. 120, (2021)  ·  doi:10.1063/5.0080357
Laser-induced terahertz spin transport in magnetic nanostructures arises from the same force as ultrafast demagnetization
Laser-induced terahertz spin transport in magnetic nanostructures arises from the same force as ultrafast demagnetization
Rouzegar, R., Brandt, L., Nadvornik, L., Reiss, D. A., Chekhov, A. L., Gueckstock, O., In, C., Wolf, M., Seifert, T. S., Brouwer, P. W., Woltersdorf, G., Kampfrath, T.
Physical Review B (2021)  ·  arxiv:2103.11710
Terahertz spin-to-charge conversion by interfacial skew scattering in magnetic metal bilayers
Terahertz spin-to-charge conversion by interfacial skew scattering in magnetic metal bilayers
Gueckstock, Oliver, Nádvorník, Lukáš, Gradhand, Martin, Seifert, Tom Sebastian, Bierhance, Genaro, Rouzegar, Reza, Wolf, Martin, Vafaee, Mehran, Cramer, Joel, Syskaki, Maria Andromachi, Woltersdorf, Georg, Mertig, Ingrid, Jakob, Gerhard, Kläui, Mathias, Kampfrath, Tobias
Advanced Materials (2021)  ·  doi:10.1002/adma.202006281
Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz
Modulating the polarization of broadband terahertz pulses from a spintronic emitter at rates up to 10 kHz
Gueckstock, Oliver, Nádvorník, Lukáš, Seifert, Tom S., Borchert, Martin, Jakob, Gerhard, Schmidt, Georg, Woltersdorf, Georg, Kläui, Mathias, Wolf, Martin, Kampfrath, Tobias
Optica (2021)  ·  doi:10.1364/optica.430504
Frequency Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THz
Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THz
TS Seifert, U Martens, F Radu, M Ribow, M Berritta, L Nádvorník, R Starke, ...
Advanced Materials (2021)  ·  url:https://google.com/search?q=Frequency%E2%80%90Independent%20Terahertz%20Anomalous%20Hall%20Effect%20in%20DyCo5%2C%20Co32Fe68%2C%20and%20Gd27Fe73%20Thin%20Films%20from%20DC%20to%2040%20THz
Accurate measurement of atomic magnetic moments by minimizing the tip magnetic field in STM-based electron paramagnetic resonance
Accurate measurement of atomic magnetic moments by minimizing the tip magnetic field in STM-based electron paramagnetic resonance
Seifert, Tom S., Kovarik, Stepan, Gambardella, Pietro, Stepanow, Sebastian
Physical Review Research (2021)  ·  doi:10.1103/physrevresearch.3.043185
Optically Gated Terahertz-Field-Driven Switching of Antiferromagnetic
Optically Gated Terahertz-Field-Driven Switching of Antiferromagnetic
JJF Heitz, L Nádvorník, V Balos, Y Behovits, AL Chekhov, TS Seifert, ...
Physical Review Applied (2021)  ·  url:https://google.com/search?q=Optically%20Gated%20Terahertz-Field-Driven%20Switching%20of%20Antiferromagnetic
Exploiting ultrafast spintronics for terahertz photonics
Exploiting ultrafast spintronics for terahertz photonics
Seifert, Tom Sebastian
Spintronics XIV (2021)  ·  doi:10.1117/12.2596230
Same driving force for laser-induced ultrafast demagnetization and THz spin transport
Same driving force for laser-induced ultrafast demagnetization and THz spin transport
R Rouzegar, L Brandt, L Nadvornik, A Chekhov, D Reiss, O Gueckstock, ...
APS March Meeting Abstracts 2021, P38. (2021)  ·  url:https://google.com/search?q=Same%20driving%20force%20for%20laser-induced%20ultrafast%20demagnetization%20and%20THz%20spin%20transport

2020

Ultrafast terahertz magnetometry
Ultrafast terahertz magnetometry
W Zhang, P Maldonado, Z Jin, TS Seifert, J Arabski, G Schmerber, ...
Nature communications (2020)  ·  url:https://google.com/search?q=Ultrafast%20terahertz%20magnetometry
Longitudinal and transverse electron paramagnetic resonance in a scanning tunneling microscope
Longitudinal and transverse electron paramagnetic resonance in a scanning tunneling microscope
Seifert, Tom S., Kovarik, Stepan, Juraschek, Dominik M., Spaldin, Nicola A., Gambardella, Pietro, Stepanow, Sebastian
Science Advances (2020)  ·  doi:10.1126/sciadv.abc5511
Single-atom electron paramagnetic resonance in a scanning tunneling microscope driven by a radiofrequency antenna at 4 K
Single-atom electron paramagnetic resonance in a scanning tunneling microscope driven by a radiofrequency antenna at 4 K
Seifert, T. S., Kovarik, S., Nistor, C., Persichetti, L., Stepanow, S., Gambardella, P.
Physical Review Research (2020)  ·  doi:10.1103/physrevresearch.2.013032
Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG Cu1 xIrx Bilayers Across a Wide Concentration Range
Complex Terahertz and Direct Current Inverse Spin Hall Effect in YIG/Cu1–xIrx Bilayers Across a Wide Concentration Range
Nano letters (2020)  ·  doi:10.1021/acs.nanolett.7b04538.s001
High-throughput techniques for measuring the spin Hall effect
High-throughput techniques for measuring the spin Hall effect
Meinert, Markus, Gliniors, Björn, Gueckstock, Oliver, Seifert, Tom S., Liensberger, Lukas, Weiler, Mathias, Wimmer, Sebastian, Ebert, Hubert, Kampfrath, Tobias
Physical Review Applied (2020)  ·  doi:10.1103/physrevapplied.14.064011
Ultrafast Magnetization Dynamics Revealed by Terahertz Magnetometry
Ultrafast Magnetization Dynamics Revealed by Terahertz Magnetometry
Zhang, Wentao, Maldonado, Pablo, Jin, Zuanming, Seifert, Tom S., Arabski, Jacek, Schmerber, Guy, Beaurepaire, Eric, Bonn, Mischa, Kampfrath, Tobias, Oppeneer, Peter M., Turchinovich, Dmitry
The 22nd International Conference on Ultrafast Phenomena (2020)  ·  doi:10.1364/up.2020.tu1a.5
Study of ultrafast magnetism by THz emission spectroscopy Conference Presentation
Study of ultrafast magnetism by THz emission spectroscopy (Conference Presentation)
Zhang, Wentao, Maldonado, Pablo, Jin, Zuanming, Seifert, Tom, Arabski, Jacek, Schmerber, Guy, Beaurepaire, Eric, Bonn, Mischa, Kampfrath, Tobias, Oppeneer, Peter, Turchinovich, Dmitry
Terahertz Photonics (2020)  ·  doi:10.1117/12.2554408

2019

Impact of pump wavelength on terahertz emission of a cavity-enhanced spintronic trilayer
Impact of pump wavelength on terahertz emission of a cavity-enhanced spintronic trilayer
Herapath, R I., Hornett, S M., Seifert, T, Jakob, G, Klaui, M, Bertolotti, J, Kampfrath, T, Hendry, E
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2019)  ·  doi:10.1109/irmmw-thz.2019.8873865
Antenna-coupled spintronic terahertz emitters driven by a 1550 nm femtosecond laser oscillator
Antenna-coupled spintronic terahertz emitters driven by a 1550 nm femtosecond laser oscillator
Nandi, U., Abdelaziz, M. S., Jaiswal, S., Jakob, G., Gueckstock, O., Rouzegar, S. M., Seifert, T. S., Kläui, M., Kampfrath, T., Preu, S.
Applied Physics Letters (2019)  ·  doi:10.1063/1.5089421
Effect of DC Electric Field on the Emitted THz Signal of Antenna-Coupled Spintronic Emitters
Effect of DC Electric Field on the Emitted THz Signal of Antenna-Coupled Spintronic Emitters
Nandi, U., Preu, S., Abdelaziz, M.S., Jaiswal, S., Jakob, G., Gueckstock, O., S Rouzegar, M. R., Seifert, T.S., Klaui, M., Kampfrath, T.
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2019)  ·  doi:10.1109/irmmw-thz.2019.8874256

2018

Terahertz spectroscopy for all-optical spintronic characterization of the spin-Hall-effect metals Pt, W and Cu80Ir20
Terahertz spectroscopy for all-optical spintronic characterization of the spin-Hall-effect metals Pt, W and Cu80Ir20
Seifert, T S, Tran, N M, Gueckstock, O, Rouzegar, S M, Nadvornik, L, Jaiswal, S, Jakob, G, Temnov, V V, Münzenberg, M, Wolf, M, Kläui, M, Kampfrath, T
Journal of Physics D: Applied Physics (2018)  ·  doi:10.1088/1361-6463/aad536
Spintronics with Terahertz Radiation: Probing and driving spins at highest frequencies
Spintronics with Terahertz Radiation: Probing and driving spins at highest frequencies
TS Seifert
(2018)  ·  url:https://google.com/search?q=Spintronics%20with%20Terahertz%20Radiation%3A%20Probing%20and%20driving%20spins%20at%20highest%20frequencies

2017

THz electrical writing speed in an antiferromagnetic memory
THz electrical writing speed in an antiferromagnetic memory
Olejnik, K., Seifert, T., Kaspar, Z., Novak, V., Wadley, P., Campion, R. P., Baumgartner, M., Gambardella, P., Nemec, P., Wunderlich, J., Sinova, J., Muller, M., Kampfrath, T., Jungwirth, T.
Science advances (2017)  ·  arxiv:1711.08444
Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm 1 from a metallic spintronic emitter
Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm− 1 from a metallic spintronic emitter
Seifert, T., Jaiswal, S., Sajadi, M., Jakob, G., Winnerl, S., Wolf, M., Kläui, M., Kampfrath, T.
Applied Physics Letters (2017)  ·  doi:10.1063/1.4986755
Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy
Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy
Seifert, T. S., Jaiswal, S., Barker, J., Weber, S. T., Razdolski, I., Cramer, J., Gueckstock, O., Maehrlein, S., Nadvornik, L., Watanabe, S., Ciccarelli, C., Melnikov, A., Jakob, G., Münzenberg, M., Goennenwein, S. T. B., Woltersdorf, G., Rethfeld, B., Brouwer, P. W., Wolf, M., Kläui, M., Kampfrath, T.
(2017)  ·  doi:10.1038/s41467-018-05135-2
Terahertz spin currents and inverse spin Hall effect in thin-film heterostructures containing complex magnetic compounds
Terahertz spin currents and inverse spin Hall effect in thin-film heterostructures containing complex magnetic compounds
Seifert, T., Martens, U., Günther, S., Schoen, M. A. W., Radu, F., Chen, X. Z., Lucas, I., Ramos, R., Aguirre, M. H., Algarabel, P. A., Anadón, A., Körner, H., Walowski, J., Back, C., Ibarra, M. R., Morellón, L., Saitoh, E., Wolf, M., Song, C., Uchida, K., Münzenberg, M., Radu, I., Kampfrath, T.
SPIN, Volume 07, Issue 03, September (2017)  ·  doi:10.1142/S2010324717400100
Terahertz Spectroscopy of Femtosecond Spins Currents in Magnetic Heterostructures
Terahertz Spectroscopy of Femtosecond Spins Currents in Magnetic Heterostructures
T Seifert
DPG-Frühjahrstagung, Sektion Kondensierte Materie (SKM), Focus Session … (2017)  ·  url:https://google.com/search?q=Terahertz%20Spectroscopy%20of%20Femtosecond%20Spins%20Currents%20in%20Magnetic%20Heterostructures
The Thinner, the Better: Nanometer-Thick Spintronic Terahertz Emitters
The Thinner, the Better: Nanometer-Thick Spintronic Terahertz Emitters
T Seifert
NanoOstrava 2017, Terahertz technology and nanostructures in photonics and …, (2017)  ·  url:https://google.com/search?q=The%20Thinner%2C%20the%20Better%3A%20Nanometer-Thick%20Spintronic%20Terahertz%20Emitters

2015

Efficient metallic spintronic emitters of ultrabroadband terahertz radiation
Efficient metallic spintronic emitters of ultrabroadband terahertz radiation
Seifert, T., Jaiswal, S., Martens, U., Hannegan, J., Braun, L., Maldonado, P., Freimuth, F., Kronenberg, A., Henrizi, J., Radu, I., Beaurepaire, E., Mokrousov, Y., Oppeneer, P. M., Jourdan, M., Jakob, G., Turchinovich, D., Hayden, L. M., Wolf, M., Münzenberg, M., Kläui, M., Kampfrath, T.
Nature Photonics 10, (2015)  ·  doi:10.1038/nphoton.2016.91
Origin of surface trap states in CdS quantum dots: relationship between size dependent photoluminescence and sulfur vacancy trap states
Origin of surface trap states in CdS quantum dots: relationship between size dependent photoluminescence and sulfur vacancy trap states
Veamatahau, Aisea, Jiang, Bo, Seifert, Tom, Makuta, Satoshi, Latham, Kay, Kanehara, Masayuki, Teranishi, Toshiharu, Tachibana, Yasuhiro
Physical Chemistry Chemical Physics (2015)  ·  doi:10.1039/c4cp04761c
Anomalous Hall Effect at Terahertz Frequencies
Anomalous Hall Effect at Terahertz Frequencies
T Seifert, L Braun, M Wolf, U Martens, F Radu, M Münzenberg, ...
Frühjahrstagung der Deutschen Physikalischen Gesellschaft (2015)  ·  url:https://google.com/search?q=Anomalous%20Hall%20Effect%20at%20Terahertz%20Frequencies

2011

Tuning whispering gallery modes using internal aerostatic pressure
Tuning whispering gallery modes using internal aerostatic pressure
Henze, Rico, Seifert, Tom, Ward, Jonathan, Benson, Oliver
Optics Letters (2011)  ·  doi:10.1364/ol.36.004536
2026 3
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2023 12
2022 12
2021 9
2020 7
2019 3
2018 2
2017 6
2015 3
2011 1