Terahertz Néel spin-orbit torques drive nonlinear magnon dynamics in antiferromagnetic Mn2Au

Autor: Y. Behovits, A. L. Chekhov, S. Yu. Bodnar, O. Gueckstock, S. Reimers, Y. Lytvynenko, Y. Skourski, M. Wolf, T. S. Seifert, O. Gomonay, M. Kläui, M. Jourdan, T. Kampfrath

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)

Abstract Antiferromagnets have large potential for ultrafast coherent switching of magnetic order with minimum heat dissipation. In materials such as Mn2Au and CuMnAs, electric rather than magnetic fields may control antiferromagnetic order by Néel

Externí odkaz: https://doaj.org/article/3def589836274a27ad73e34c57d0c3c5

Ultrafast Demagnetization of Iron Induced by Optical versus Terahertz Pulses

Autor: A. L. Chekhov, Y. Behovits, J. J. F. Heitz, C. Denker, D. A. Reiss, M. Wolf, M. Weinelt, P. W. Brouwer, M. Münzenberg, T. Kampfrath

Publikováno v: Physical Review X, Vol 11, Iss 4, p 041055 (2021)

We study ultrafast magnetization quenching of ferromagnetic iron following excitation by an optical versus a terahertz pump pulse. While the optical pump (photon energy of 3.1 eV) induces a strongly nonthermal electron distribution, terahertz excitat

Externí odkaz: https://doaj.org/article/04f5dce03ca348ab899b6263018806a5

Probing ultra-fast processes with high dynamic range at 4th-generation light sources: Arrival time and intensity binning at unprecedented repetition rates

Autor: S. Kovalev, B. Green, T. Golz, S. Maehrlein, N. Stojanovic, A. S. Fisher, T. Kampfrath, M. Gensch

Publikováno v: Structural Dynamics, Vol 4, Iss 2, Pp 024301-024301-7 (2017)

Understanding dynamics on ultrafast timescales enables unique and new insights into important processes in the materials and life sciences. In this respect, the fundamental pump-probe approach based on ultra-short photon pulses aims at the creation o

Externí odkaz: https://doaj.org/article/692309d827604347a33c42649a4f6db1

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Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses

Autor: I. Ilyakov, N. Agarwal, J.-C. Deinert, J. Liu, A. Yaroslavtsev, L. Foglia, G. Kurdi, R. Mincigrucci, E. Principi, G. Jakob, M. Kläui, T. S. Seifert, T. Kampfrath, S. Kovalev, R. E. Carley, A. O. Scherz, M. Gensch

Publikováno v: Optica 9(2022)5, 545-550
Optica
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 2022, ' Terahertz-wave decoding of femtosecond extreme-ultraviolet light pulses ', Optica, vol. 9, no. 5, pp. 545-550 . https://doi.org/10.1364/OPTICA.453130

In recent years, femtosecond extreme-ultraviolet (XUV) and x-ray pulses from free-electron lasers have developed into important probes to monitor processes and dynamics in matter on femtosecond-time and angstrom-length scales. With the rapid progress

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1a57bb66214f6ee5385b1ab4b57f1c0
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-476811