Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Seifert, Tom"'
Autor:
Go, Dongwook, Seifert, Tom S., Kampfrath, Tobias, Ando, Kazuya, Lee, Hyun-Woo, Mokrousov, Yuriy
The coupled transport of the charge and orbital angular momentum of electrons is at the heart of orbitronics. Here, we discuss the reciprocal relation between the direct and inverse orbital Hall effects (OHEs) in thin films. We argue that the convent
Externí odkaz:
http://arxiv.org/abs/2407.00517
Autor:
Vaitsi, Alkisti, Sleziona, Vivien, López, Luis E. Parra, Behovits, Yannic, Schulz, Fabian, Sabanés, Natalia Martín, Kampfrath, Tobias, Wolf, Martin, Seifert, Tom S., Müller, Melanie
Publikováno v:
Appl. Phys. Lett. 125, 071107 (2024)
Spintronic terahertz emitters (STEs) are powerful sources of ultra-broadband single-cycle terahertz (THz) field transients. They work with any pump wavelength, and their polarity and polarization direction are easily adjustable. However, at high pump
Externí odkaz:
http://arxiv.org/abs/2404.16976
Autor:
Gueckstock, Oliver, Stojanovic, Nikola, Ha, Yoo Kyung, Hagelschuer, Till, Denker, Andrea, Kourkafas, Giorgious, Seifert, Tom, Kampfrath, Tobias, Gensch, Michael
The radiation hardness of ultrabroadband, spintronic terahertz emitters against gamma and proton irradiation is investigated. We find that irradiation doses equivalent to those experienced by a space instrument en-route to and operated on Mars have a
Externí odkaz:
http://arxiv.org/abs/2401.10672
Autor:
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
We study the spatiotemporal dynamics of ultrafast electron spin transport across nanometer-thick copper layers using broadband terahertz spectroscopy. Our analysis of temporal delays, broadening and attenuation of the spin-current pulse revealed ball
Externí odkaz:
http://arxiv.org/abs/2310.12082
Autor:
Alostaz, Afnan, Gueckstock, Oliver, Tong, Jungwei, Kredl, Jana, In, Chihun, Münzenberg, Markus, Seifert, Tom S.
Linear terahertz time-domain spectroscopy (THz-TDS) is a sensitive probe for material characterization including thickness measurements of thin layers. These applications critically rely on a sufficiently large bandwidth, which is not straightforward
Externí odkaz:
http://arxiv.org/abs/2310.12012
Autor:
Behovits, Yannic, Chekhov, Alexander L., Bodnar, Stanislav Yu., Gueckstock, Oliver, Reimers, Sonka, Seifert, Tom S., Wolf, Martin, Gomonay, Olena, Kläui, Mathias, Jourdan, Martin, Kampfrath, Tobias
Publikováno v:
Nature Communications 14, 6038 (2023)
Antiferromagnets have large potential for ultrafast coherent switching of magnetic order with minimum heat dissipation. In novel materials such as Mn$_2$Au and CuMnAs, electric rather than magnetic fields may control antiferromagnetic order by N\'eel
Externí odkaz:
http://arxiv.org/abs/2305.03368
Autor:
Paries, Felix, Tiercelin, Nicolas, Lezier, Geoffrey, Vanwolleghem, Mathias, Selz, Felix, Syskaki, Maria-Andromachi, Kammerbauer, Fabian, Jakob, Gerhard, Jourdan, Martin, KlÄui, Mathias, Kaspar, Zdenek, Kampfrath, Tobias, Seifert, Tom S., Von Freymann, Georg, Molter, Daniel
Spintronic terahertz emitters promise terahertz sources with an unmatched broad frequency bandwidth that are easy to fabricate and operate, and therefore easy to scale at low cost. However, current experiments and proofs of concept rely on free-space
Externí odkaz:
http://arxiv.org/abs/2305.01365
Autor:
Seifert, Tom S., Go, Dongwook, Hayashi, Hiroki, Rouzegar, Reza, Freimuth, Frank, Ando, Kazuya, Mokrousov, Yuriy, Kampfrath, Tobias
Publikováno v:
Nature Nanotechnology (2023)
The emerging field of orbitronics exploits the electron orbital momentum $\textit{L}$. Compared to spin-polarized electrons, $\textit{L}$ may allow magnetic-information transfera with significantly higher density over longer distances in more materia
Externí odkaz:
http://arxiv.org/abs/2301.00747
Autor:
Qiu, Hongsong, Seifert, Tom Sebastian, Huang, Lin, Zhou, Yongjian, Kaspar, Zdenek, Zhang, Caihong, Wu, Jingbo, Fan, Kebin, Zhang, Qi, Wu, Di, Kampfrath, Tobias, Song, Cheng, Jin, Biaobing, Chen, Jian, Wu, Peiheng
An important vision of modern magnetic research is to use antiferromagnets as controllable and active ultrafast components in spintronic devices. Hematite is a promising model material in this respect because its pronounced Dzyaloshinskii-Moriya inte
Externí odkaz:
http://arxiv.org/abs/2209.10175
Autor:
Nádvorník, Lukáš, Gueckstock, Oliver, Braun, Lukas, Niu, Chengwang, Gräfe, Joachim, Richter, Gunther, Schütz, Gisela, Takagi, Hidenori, 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
Transition-metal dichalcogenides (TMDCs) are an aspiring class of materials with unique electronic and optical properties and potential applications in spin-based electronics. Here, we use terahertz emission spectroscopy to study spin-to-charge curre
Externí odkaz:
http://arxiv.org/abs/2208.00846