Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Papaioannou Evangelos"'
Autor:
Vasileiadis Isaak, Scheuer Laura, Karfaridis Dimitrios, Dimitrakopulos George, Papaioannou Evangelos, Kehagias Thomas
Publikováno v:
BIO Web of Conferences, Vol 129, p 22015 (2024)
Externí odkaz:
https://doaj.org/article/808bab072f3c46839a394b4bdeec0970
Publikováno v:
Nanophotonics, Vol 10, Iss 4, Pp 1243-1257 (2020)
The field of THz spintronics is a novel direction in the research field of nanomagnetism and spintronics that combines magnetism with optical physics and ultrafast photonics. The experimental scheme of the field involves the use of femtosecond laser
Externí odkaz:
https://doaj.org/article/0a3700b162da4f398acc1943fca42eb4
Autor:
Das-Mohapatra, Bikash, Rouzegar, Reza, Papaioannou, Evangelos Th., Kampfrath, Tobias, Schmidt, Georg
We show in theory and experiment that in periodically patterned spintronic THz emitters (STE), charge dynamics can modify the emission spectrum in a well-controlled way. Characterization of sub-wavelength patterned STE at frequencies up to 30 THz sho
Externí odkaz:
http://arxiv.org/abs/2308.07159
Autor:
Häuser, Simon, Schweizer, Matthias R., Keller, Sascha, Conca, Andres, Hofherr, Moritz, Papaioannou, Evangelos, Stadtmüller, Benjamin, Hillebrands, Burkard, Aeschlimann, Martin, Weiler, Mathias
We present a study of the damping and spin pumping properties of CoFeB/X/Pt systems with $\rm X=Al,Cr$ and $\rm Ta$. We show that the total damping of the CoFeB/Pt systems is strongly reduced when an interlayer is introduced independently of the mate
Externí odkaz:
http://arxiv.org/abs/2306.11009
We show that to correctly describe the ultrafast currents in spintronic THz emitters it is necessary to take charge equilibration into account. The charge current which is locally induced by a fs laser pulse and the inverse spin-Hall effect (ISHE) le
Externí odkaz:
http://arxiv.org/abs/2208.07616
Autor:
Scheuer, Laura, Ruhwedel, Moritz, Karfaridis, Dimitris, Vasileiadis, Isaak G., Sokoluk, Dominik, Torosyan, Garik, Vourlias, George, Dimitrakopoulos, George P., Rahm, Marco, Hillebrands, Burkard, Kehagias, Thomas, Beigang, René, Papaioannou, Evangelos Th.
Publikováno v:
iScience 25, 104319 (2022)
Recent developments in nanomagnetism and spintronics have enabled the use of ultrafast spin physics for terahertz (THz) emission. Spintronic THz emitters, consisting of ferromagnetic FM / non-magnetic (NM) thin film heterostructures, have demonstrate
Externí odkaz:
http://arxiv.org/abs/2204.00704
Autor:
Qu, Liu, Papaioannou, Evangelos I.
Publikováno v:
In Chemical Engineering Journal 15 September 2024 496
Autor:
Leishman, Claire, García-Vázquez, Miguel, Bekris, Leonidas, Alvarez Ruiz, Diana Talia, Doustdar, Omid, Zeraati Rezaei, Soheil, Martin Herreros, Jose, Tsolakis, Athanasios, Papaioannou, Evangelos I., Li, Kang, García-García, Francisco R.
Publikováno v:
In Materials Today Sustainability September 2024 27
Autor:
Chioar, Ioan-Augustin, Vantaraki, Christina, Pohlit, Merlin, Rowan-Robinson, Richard M., Papaioannou, Evangelos Th., Hjörvarsson, Björgvin, Kapaklis, Vassilios
Publikováno v:
Applied Physics Letters 120, 032407 (2022)
We study the steering of visible light using a combination of magneto-optical effects and the reconfigurability of magnetic domains in Yttrium-Iron Garnet films. The spontaneously formed stripe domains are used as a field-controlled optical grating,
Externí odkaz:
http://arxiv.org/abs/2111.15219
Autor:
Hossain, Mohammad Tomal, Lendinez, Sergi, Scheuer, Laura, Papaioannou, Evangelos, Jungfleisch, M. Benjamin
We report the generation and detection of spin-orbit torque ferromagnetic resonance (STFMR) in micropatterned epitaxial Fe/Pt bilayers grown by molecular beam epitaxy. The magnetic field dependent measurements at an in-plane magnetic field angle of 4
Externí odkaz:
http://arxiv.org/abs/2108.09132