Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Graefe, Joachim"'
Autor:
Gerlinger, Kathinka, Pfau, Bastian, Hennecke, Martin, Kern, Lisa-Marie, Will, Ingo, Noll, Tino, Weigand, Markus, Gräfe, Joachim, Träger, Nick, Schneider, Michael, Günther, Christian M., Engel, Dieter, Schütz, Gisela, Eisebitt, Stefan
We present time-resolved scanning x-ray microscopy measurements with picosecond photo-excitation via a tailored infrared pump laser at a scanning transmission x-ray microscope. Specifically, we image the laser-induced demagnetization and remagnetizat
Externí odkaz:
http://arxiv.org/abs/2211.01230
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
Autor:
Juge, Roméo, Sisodia, Naveen, Larrañaga, Joseba Urrestarazu, Zhang, Qiang, Pham, Van Tuong, Rana, Kumari Gaurav, Sarpi, Brice, Mille, Nicolas, Stanescu, Stefan, Belkhou, Rachid, Mawass, Mohamad-Assaad, Novakovic-Marinkovic, Nina, Kronast, Florian, Weigand, Markus, Gräfe, Joachim, Wintz, Sebastian, Finizio, Simone, Raabe, Jörg, Aballe, Lucia, Foerster, Michael, Belmeguenai, Mohamed, Buda-Prejbeanu, Liliana, Shaw, Justin M., Nembach, Hans T., Ranno, Laurent, Gaudin, Gilles, Boulle, Olivier
Publikováno v:
Nature Communications, 13, 4807 (2022)
Magnetic skyrmions are topological spin textures that hold great promise as nanoscale information carriers in non-volatile memory and logic devices. While room-temperature magnetic skyrmions and their current-induced manipulation were recently demons
Externí odkaz:
http://arxiv.org/abs/2111.11878
Autor:
Ahlberg, Martina, Chung, Sunjae, Jiang, Sheng, Le, Q. Tuan, Khymyn, Roman, Mazraati, Hamid, Weigand, Markus, Bykova, Iuliia, Groß, Felix, Goering, Eberhard, Schütz, Gisela, Gräfe, Joachim, Åkerman, Johan
Magnetic droplets are non-topological magnetodynamical solitons displaying a wide range of complex dynamic phenomena with potential for microwave signal generation. Bubbles, on the other hand, are internally static cylindrical magnetic domains, stabi
Externí odkaz:
http://arxiv.org/abs/2104.14897
Autor:
Sun, Qi-Chao, Song, Tiancheng, Anderson, Eric, Shalomayeva, Tetyana, Förster, Johaness, Brunner, Andreas, Taniguchi, Takashi, Watanabe, Kenji, Gräfe, Joachim, Stöhr, Rainer, Xu, Xiaodong, Wrachtrup, Jörg
Magnetic-domain structure and dynamics play an important role in understanding and controlling the magnetic properties of two-dimensional magnets, which are of interest to both fundamental studies and applications[1-5]. However, the probe methods bas
Externí odkaz:
http://arxiv.org/abs/2009.13440
Autor:
Murzin, Dmitry, Belyaev, Victor K., Groß, Felix, Gräfe, Joachim, Perov, Nikolay, Komanicky, Vladimir, Rodionova, Valeria
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 December 2023 588 Part A
Autor:
Träger, Nick, Gruszecki, Paweł, Lisiecki, Filip, Groß, Felix, Förster, Johannes, Weigand, Markus, Głowiński, Hubert, Kuświk, Piotr, Dubowik, Janusz, Schütz, Gisela, Krawczyk, Maciej, Gräfe, Joachim
Publikováno v:
Phys. Rev. Lett. 126, 057201 (2021)
The concept of Space-Time Crystals (STC), i.e. translational symmetry breaking in time and space, was recently proposed and experimentally demonstrated for quantum systems. Here, we transfer this concept to magnons and experimentally demonstrate a dr
Externí odkaz:
http://arxiv.org/abs/1911.13192
Autor:
Talmelli, Giacomo, Devolder, Thibaut, Träger, Nick, Förster, Johannes, Wintz, Sebastian, Weigand, Markus, Stoll, Hermann, Heyns, Marc, Schütz, Gisela, Radu, Iuliana, Gräfe, Joachim, Ciubotaru, Florin, Adelmann, Christoph
Publikováno v:
Science Advances, Vol. 6, eabb4042 (2020)
Spin waves are excitations in ferromagnetic media that have been proposed as information carriers in hybrid spintronic devices with much lower operation power than conventional charge-based electronics. Their wave nature can be exploited in majority
Externí odkaz:
http://arxiv.org/abs/1908.02546
Autor:
Lisiecki, Filip, Rychły, Justyna, Kuświk, Piotr, Głowiński, Hubert, Kłos, Jarosław W., Groß, Felix, Bykova, Iuliia, Weigand, Markus, Zelent, Mateusz, Goering, Eberhard, Schütz, Gisela, Krawczyk, Maciej, Stobiecki, Feliks, Dubowik, Janusz, Gräfe, Joachim
Publikováno v:
Phys. Rev. Applied 11, 054061 (2019)
Magnonic quasicrystals exceed the possibilities of spin wave (SW) manipulation offered by regular magnonic crystals, because of their more complex SW spectra with fractal characteristics. Here, we report the direct x-ray microscopic observation of pr
Externí odkaz:
http://arxiv.org/abs/1810.04931
Autor:
Gräfe, Joachim, Decker, Martin, Keskinbora, Kahraman, Noske, Matthias, Gawronski, Przemysław, Stoll, Hermann, Back, Christian H., Goering, Eberhard J., Schütz, Gisela
Publikováno v:
Phys. Rev. B 102, 024420 (2020)
Magnonics, i.e. the artificial manipulation of spin waves, is a flourishing field of research with many potential uses in data processing within reach. Apart from the technological applications the possibility to directly influence and observe these
Externí odkaz:
http://arxiv.org/abs/1707.03664