Zobrazeno 1 - 10
of 1 061
pro vyhledávání: '"Seifert T."'
Autor:
Chekhov, A. L., Behovits, Y., Martens, U., Serrano, B. R., Wolf, M., Seifert, T. S., Muenzenberg, M., Kampfrath, T.
We demonstrate detection of broadband intense terahertz electromagnetic pulses by Zeeman-torque sampling (ZTS). Our approach is based on magneto-optic probing of the Zeeman torque the terahertz magnetic field exerts on the magnetization of a ferromag
Externí odkaz:
http://arxiv.org/abs/2306.09734
Autor:
Rouzegar, R., Wahada, M. A., Chekhov, A. L., Hoppe, W., Jechumtal, J., Nadvornik, L., Wolf, M., Seifert, T. S., Parkin, S. S. P., Woltersdorf, G., Brouwer, P. W., Kampfrath, T.
We study femtosecond spin currents through MgO tunneling barriers in CoFeB(2 nm)|MgO($d$)|Pt(2 nm) stacks by terahertz emission spectroscopy. To obtain transport information independent of extrinsic experimental factors, we determine the complex-valu
Externí odkaz:
http://arxiv.org/abs/2305.09074
Autor:
Rongione, E., Gueckstock, O., Mattern, M., Gomonay, O., Meer, H., Schmitt, C., Ramos, R., Saitoh, E., Sinova, J., Jaffrès, H., Mičica, M., Mangeney, J., Goennenwein, S. T. B., Geprägs, S., Kampfrath, T., Kläui, M., Bargheer, M., Seifert, T. S., Dhillon, S., Lebrun, R.
Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains a key challenge that is envisioned to be accomplish
Externí odkaz:
http://arxiv.org/abs/2205.11965
Autor:
Heitz, J. J. F., Nádvorník, L., Balos, V., Behovits, Y., Chekhov, A. L., Seifert, T. S., Olejník, K., Kašpar, Z., Geishendorf, K., Novák, V., Campion, R. P., Wolf, M., Jungwirth, T., Kampfrath, T.
We show scalable and complete suppression of the recently reported terahertz-pulse-induced switching between different resistance states of antiferromagnetic CuMnAs thin films by ultrafast gating. The gating functionality is achieved by an optically
Externí odkaz:
http://arxiv.org/abs/2106.08828
Autor:
Rouzegar, R., Brandt, L., Nadvornik, L., Reiss, D. A., Chekhov, A. L., Gueckstock, O., In, C., Wolf, M., Seifert, T. S., Brouwer, P. W., Woltersdorf, G., Kampfrath, T.
Laser-induced terahertz spin transport (TST) and ultrafast demagnetization (UDM) are central but so far disconnected phenomena in femtomagnetism and terahertz spintronics. Here, we use broadband terahertz emission spectroscopy to reliably measure bot
Externí odkaz:
http://arxiv.org/abs/2103.11710
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 219, Iss 1-4, Pp 329-330 (2004)
Externí odkaz:
https://doaj.org/article/eb1df7d05a2c4ae58c00d23aef315daa
Autor:
Fagerberg, N., Seifert, S., Seifert, T., Lohmander, P., Alissandrakis, A., Magnusson, B., Bergh, J., Adamopoulos, S., Bader, M.K.-F.
Publikováno v:
In Forest Ecology and Management 15 September 2023 544
Publikováno v:
Phys. Rev. Research 2, 013032 (2020)
Combining electron paramagnetic resonance (EPR) with scanning tunneling microscopy (STM) enables detailed insight into the interactions and magnetic properties of single atoms on surfaces. A requirement for EPR-STM is the efficient coupling of microw
Externí odkaz:
http://arxiv.org/abs/1908.03379
Autor:
Herapath, Rosamund I., Hornett, Sam M., Seifert, T., Jakob, Gerhard, Kläui, Mathias, Bertolotti, Jacopo, Kampfrath, T., Hendry, Euan
We systematically study the pump-wavelength dependence of terahertz pulse generation in thin-film spintronic THz emitters composed of a ferromagnetic Fe layer between adjacent nonmagnetic W and Pt layers. We find that the efficiency of THz generation
Externí odkaz:
http://arxiv.org/abs/1808.00746
Autor:
Olejnik, K., Seifert, T., Kaspar, Z., Novak, V., Wadley, P., Campion, R. P., Baumgartner, M., Gambardella, P., Nemec, P., Wunderlich, J., Sinova, J., Muller, M., Kampfrath, T., Jungwirth, T.
The speed of writing of state-of-the-art ferromagnetic memories is physically limited by an intrinsic GHz threshold. Recently, an alternative research direction has been initiated by realizing memory devices based on antiferromagnets in which spin di
Externí odkaz:
http://arxiv.org/abs/1711.08444