Forthcoming Events

01.10.2020 - 01.10.2020, AkademieHotel, Karlsruhe, Germany
26.10.2020 - 28.10.2020, Paul Scherrer Institut (PSI), Villigen,Switzerland


New scientific highlights- by MUST PIs Chergui, Milne and Wörner
New scientific highlights- from MUST researchers at PSI
Promotion to full professorcongratulations to Steve Johnson!
The Laser at 60: Ursula KellerOPN interviewed OSA Fellows
Former EPFL PhD student Edoardo Baldini wins the 2020 ACS PHYS Division Young Investigator Awards
New scientific highlights- by MUST PIs Banerji, Chergui and Wolf
Prix de l'innovation AGROVINA 2020- for Agrolase: detecting spores of pathogens in real time
Ruth Signorell receives the Humboldt Prize- awarded in recognition of outstanding achievements in research and teaching

Probing and controlling spin transport with ultrashort terahertz pulses

Date Mo, 17.02.2020 - Mo, 17.02.2020
Time 16:45h
Speaker Prof. Tobias Kampfrath, Freie Universität Berlin and Fritz Haber Institute of the Max Planck Society
Location ETH Hönggerberg, HPF G6
Program To take advantage of the electron spin in future electronics, spin angular momentum needs to be transported and detected. Heat gradients and electric fieldshave beenshown to efficientlydrive spin transport at megahertzand gigahertzfrequencies. However, to probe the initial elementary steps thatlead to the formation of spin currents, we need to launch and measure transport on femtosecond time scales. This goal is achieved by employing both ultrashort optical and terahertz electromagnetic pulses. We show that this experimental strategy provides new insights into important spintronic effects, in particular thespin Seebeck effectand even mature phenomena such as anisotropic magnetoresistance.Interesting applications such as the efficient generation of ultrashort terahertz electromagnetic pulses will also be addressed.

[1] Seifert et al., Nature Comm.9, Articlenumber:2899(2018)
[2] Maehrlein et al., Science Adv.4, eaar5164 (2018)
[3] Seifert et al., Nature Photon.10, 483 (2016)
[4] Fülöpet al., Advanced Optical Materials 1900681 (2019)
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