Tom S. Seifert
@tomseifert.bsky.social
Terahertz Nanoscopy of Complex Materials. Table Tennis Player. Running TeraSpinTec.
Autumn Sale at TeraSpinTec. Order a T-Spin2 or two T-Spin1 spintronic THz emitters and get one of our THz detectors for free. teraspintec.com
September 23, 2025 at 12:46 PM
Autumn Sale at TeraSpinTec. Order a T-Spin2 or two T-Spin1 spintronic THz emitters and get one of our THz detectors for free. teraspintec.com
Reposted by Tom S. Seifert
We have a position with permanent perspective available in our group!
August 19, 2025 at 7:58 AM
We have a position with permanent perspective available in our group!
Reposted by Tom S. Seifert
Reposted by Tom S. Seifert
AI can improve the design of experiments. “It takes a lot to think this far outside of the accepted solution,” Adhikari said. “We really needed the AI.”
www.quantamagazine.org/ai-comes-up-...
www.quantamagazine.org/ai-comes-up-...
AI Comes Up with Bizarre Physics Experiments. But They Work. | Quanta Magazine
Artificial intelligence software is designing novel experimental protocols that improve upon the work of human physicists, although the humans are still “doing a lot of baby-sitting.”
www.quantamagazine.org
August 1, 2025 at 2:41 PM
AI can improve the design of experiments. “It takes a lot to think this far outside of the accepted solution,” Adhikari said. “We really needed the AI.”
www.quantamagazine.org/ai-comes-up-...
www.quantamagazine.org/ai-comes-up-...
Assume you take a magnet with a complex electronic band structure. Does the photon energy matter when triggering terahertz photocurrents? It is surprisingly insensitive. New preprint: arxiv.org/abs/2507.00977
July 2, 2025 at 8:40 AM
Assume you take a magnet with a complex electronic band structure. Does the photon energy matter when triggering terahertz photocurrents? It is surprisingly insensitive. New preprint: arxiv.org/abs/2507.00977
Using ultrafast photocurrents to disentangle the dynamics of surface and bulk related spin-to-charge conversion in topological insulators. New preprint: arxiv.org/abs/2506.22327
Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator|ferromagnet heterostructures
Three-dimensional topological insulators possess topologically protected surface states with spin-momentum locking, which enable spin-charge-current interconversion (SCI) by the inverse Edelstein effe...
arxiv.org
July 2, 2025 at 8:20 AM
Using ultrafast photocurrents to disentangle the dynamics of surface and bulk related spin-to-charge conversion in topological insulators. New preprint: arxiv.org/abs/2506.22327
Magnets with inversion asymmetry can be used to induce terahertz spin photocurrents with unusual symmetries:
New preprint: arxiv.org/abs/2507.00360
New preprint: arxiv.org/abs/2507.00360
Femtosecond photocurrents by the Dresselhaus bulk spin-galvanic effect in an inversion-asymmetric ferromagnet
We study ultrafast photocurrents in thin films of a model ferromagnetic metal with broken bulk inversion symmetry, the half-metallic Heusler compound NiMnSb, following excitation with an optical pump ...
arxiv.org
July 2, 2025 at 8:16 AM
Magnets with inversion asymmetry can be used to induce terahertz spin photocurrents with unusual symmetries:
New preprint: arxiv.org/abs/2507.00360
New preprint: arxiv.org/abs/2507.00360
Ultrafast nanoscopy of atomic scale defects and their impact on phonon excitation in 2D materials. Check out our new preprint: arxiv.org/abs/2506.08219
Influence of atomic-scale defects on coherent phonon excitations by THz near fields in an STM
Coherent phonons describe the collective, ultrafast motion of atoms and play a central role in light-induced structural dynamics. Here, we employ terahertz scanning tunneling microscopy (THz-STM) to e...
arxiv.org
June 16, 2025 at 8:42 AM
Ultrafast nanoscopy of atomic scale defects and their impact on phonon excitation in 2D materials. Check out our new preprint: arxiv.org/abs/2506.08219
Can pyroelectrics serve as efficient and broadband THz sources? Find it out: arxiv.org/abs/2506.09528
Efficient broadband terahertz generation by above band-gap excitation of the pyroelectric ZnSnN2
Terahertz (THz) radiation is a powerful probe of low-energy excitations in all phases of matter. However, it remains a challenge to find materials that efficiently generate THz radiation in a broad ra...
arxiv.org
June 13, 2025 at 6:49 AM
Can pyroelectrics serve as efficient and broadband THz sources? Find it out: arxiv.org/abs/2506.09528
We have two open PhD positions in our group "Terahertz Physics of Quantum Materials". First about ultrafast spinorbitronics, second about femtosecond current dynamics in anisotropic media. www.fu-berlin.de/universitaet...
Physik
www.fu-berlin.de
April 25, 2025 at 9:13 AM
We have two open PhD positions in our group "Terahertz Physics of Quantum Materials". First about ultrafast spinorbitronics, second about femtosecond current dynamics in anisotropic media. www.fu-berlin.de/universitaet...
Great to see so many people stand up for tolerance and democracy in Berlin today.
February 2, 2025 at 5:22 PM
Great to see so many people stand up for tolerance and democracy in Berlin today.
New to Bluesky and from the Terahertz Community? Check out this Starter Pack: go.bsky.app/Ge13A5q #THzDoesItBetter
January 19, 2025 at 7:47 AM
New to Bluesky and from the Terahertz Community? Check out this Starter Pack: go.bsky.app/Ge13A5q #THzDoesItBetter
Talking about our latest insights into terahertz spinorbitronics today. Come join me at 10:45 at the MMM/Intermag 2025 in New Orleans.
January 14, 2025 at 12:21 PM
Talking about our latest insights into terahertz spinorbitronics today. Come join me at 10:45 at the MMM/Intermag 2025 in New Orleans.