Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Tom, Seifert"'
Autor:
Jacek Arabski, Dmitry Turchinovich, Tom Seifert, Eric Beaurepaire, Guy Schmerber, Peter M. Oppeneer, Wentao Zhang, Zuanming Jin, Mischa Bonn, Pablo Maldonado, Tobias Kampfrath
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nature Communications
Nature Communications, Nature Publishing Group, 2020, 11 (1), ⟨10.1038/s41467-020-17935-6⟩
Nature Communications, 11 (1)
Nature Communications
Nature Communications, Nature Publishing Group, 2020, 11 (1), ⟨10.1038/s41467-020-17935-6⟩
Nature Communications, 11 (1)
A material’s magnetic state and its dynamics are of great fundamental research interest and are also at the core of a wide plethora of modern technologies. However, reliable access to magnetization dynamics in materials and devices on the technolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::823478fa6296f006588b66e4e7ae508a
http://link.springer.com/article/10.1038/s41467-020-17935-6
http://link.springer.com/article/10.1038/s41467-020-17935-6
Autor:
Tim Vogel, Alan Omar, Samira Mansourzadeh, Frank Wulf, Natalia Martín Sabanés, Melanie Müller, Tom Seifert, Alexander Weigel, Gerhard Jakob, Mathias Kläui, Ioachim Pupeza, Tobias Kampfrath, Clara J. Saraceno
Publikováno v:
Conference on Lasers and Electro-Optics.
We present THz generation in a back-cooled spintronic THz emitter in reflection geometry, excited with a high-average power Yb-laser providing up to 18.5 W at 400 kHz repetition rate. This allows us to increase the THz power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aba7d3e5e16197f0fed3d08e845f8e10
https://doi.org/10.1364/cleo_si.2022.ss2c.7
https://doi.org/10.1364/cleo_si.2022.ss2c.7
Autor:
Tom Seifert
Publikováno v:
Spintronics XIV.
Terahertz (THz) time-domain spectroscopy is an emerging technique to probe and manipulate spins on ultrafast time scales. In this talk, I will highlight recent results of studying spintronic phenomena at terahertz rates, which holds great promise for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f58ca30b23a4f42acc827e033f06c27
https://doi.org/10.1117/12.2596230
https://doi.org/10.1117/12.2596230
Autor:
'Tom Seifert
Publikováno v:
Tom Seifert
Data for the publication "Frequency-Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THz" published in Advanced Materials (2021). The following datasets are provided: THz waveforms for different ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::feaef9b0ec2c8375bbe2a237320c6852
https://zenodo.org/record/5095326
https://zenodo.org/record/5095326
Autor:
Björn Gliniors, Sebastian Wimmer, Lukas Liensberger, Tom Seifert, Mathias Weiler, Oliver Gueckstock, Tobias Kampfrath, Hubert Ebert, Markus Meinert
Publikováno v:
Physical Review Applied
The spin Hall effect in heavy-metal thin films is routinely employed to convert charge currents into transverse spin currents and can be used to exert torque on adjacent ferromagnets. Conversely, the inverse spin Hall effect is frequently used to det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc1f5fe901fa5476d640fb6954ac1420
https://doi.org/10.1103/physrevapplied.14.064011
https://doi.org/10.1103/physrevapplied.14.064011
Autor:
Mischa Bonn, Tom Seifert, Wentao Zhang, Tobias Kampfrath, Guy Schmerber, Dmitry Turchinovich, Pablo Maldonado, Peter M. Oppeneer, Eric Beaurepaire, Zuanming Jin, Jacek Arabski
Publikováno v:
Terahertz Photonics.
In laser-excited ferromagnetic heterostructures, both ultrafast local magnetization dynamics and spin-transport processes can lead to a THz emission. Here, we demonstrate that the THz emission spectroscopy is a powerful tool to investigate ultrafast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c03d863bc9348613f3501dcb6bbef9
https://doi.org/10.1117/12.2554408
https://doi.org/10.1117/12.2554408
Autor:
Eric Beaurepaire, Guy Schmerber, Tom Seifert, Jacek Arabski, Mischa Bonn, Zuanming Jin, Dmitry Turchinovich, Wentao Zhang, Pablo Maldonado, Peter M. Oppeneer, Tobias Kampfrath
Publikováno v:
The 22nd International Conference on Ultrafast Phenomena 2020.
We investigate ultrafast magnetization dynamics in encapsulated iron films, benefitting from their laser-induced terahertz emission. Combined with first-principles theoretical modeling, the experimental results provide quantitative insights into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff9f8bcb4d4173e3df0468cd7448d8a3
https://doi.org/10.1364/up.2020.tu1a.5
https://doi.org/10.1364/up.2020.tu1a.5
Autor:
Lukas Nadvornik, Tom Seifert, Martin Borchert, Georg Woltersdorf, Oliver Gueckstock, Mathias Kläui, Georg Schmidt, Martin Wolf, Gerhard Jakob, Tobias Kampfrath
Publikováno v:
Optica
Reliable modulation of terahertz electromagnetic waveforms is important for many applications. Here, we rapidly modulate the direction of the electric field of linearly polarized terahertz electromagnetic pulses with 1–30 THz bandwidth by applying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e7de10eacf6d86b1dd4b58f6951cb81
https://doi.org/10.1364/optica.430504
https://doi.org/10.1364/optica.430504
Autor:
M. R. S Rouzegar, Oliver Gueckstock, M. S. Abdelaziz, Tom Seifert, Samridh Jaiswal, Sascha Preu, Gerhard Jakob, M. Kläui, Tobias Kampfrath, U. Nandi
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We study the impact of an external electric DC field on antenna-coupled spintronic THz emitters driven by a 90 fs, 1550 nm laser oscillator. Simultaneous application of external electric and magnetic field shows a quadratic decrease in peak-peak THz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e63dcc5eb11d14a7ca7cbf20776a258
https://doi.org/10.1109/irmmw-thz.2019.8874256
https://doi.org/10.1109/irmmw-thz.2019.8874256
Autor:
U. Nandi, Samridh Jaiswal, Tom Seifert, Seyed Mohammedreza Rouzegar, Oliver Gueckstock, Tobias Kampfrath, M. S. Abdelaziz, Gerhard Jakob, Sascha Preu, Mathias Kläui
Publikováno v:
Applied Physics Letters
We demonstrate antenna-coupled spintronic terahertz (THz) emitters excited by 1550 nm, 90 fs laser pulses. Antennas are employed to optimize THz outcoupling and frequency coverage of ferromagnetic/nonmagnetic metallic spintronic structures. We direct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ddeb3a193c5a5e96ec03043822bed4
https://refubium.fu-berlin.de/handle/fub188/27244
https://refubium.fu-berlin.de/handle/fub188/27244