Zobrazeno 1 - 10
of 2 373
pro vyhledávání: '"Ramos Rafael"'
Autor:
Weber, Marius, Wust, Stephan, Haag, Luca, Akashdeep, Akashdeep, Leckron, Kai, Schmitt, Christin, Ramos, Rafael, Kikkawa, Takashi, Saitoh, Eiji, Kläui, Mathias, Šmejkal, Libor, Sinova, Jairo, Aeschlimann, Martin, Jakob, Gerhard, Stadtmüller, Benjamin, Schneider, Hans Christian
The recently discovered altermagnets exhibit collinear magnetic order with zero net magnetization but with unconventional spin-polarized d/g/i-wave band structures, expanding the known paradigms of ferromagnets and antiferromagnets. In addition to no
Externí odkaz:
http://arxiv.org/abs/2408.05187
Autor:
Schmitt, Christin, Rajan, Adithya, Beneke, Grischa, Kumar, Aditya, Sparmann, Tobias, Meer, Hendrik, Bednarz, Beatrice, Ramos, Rafael, Nino, Miguel Angel, Foerster, Michael, Saitoh, Eiji, Kläui, Mathias
We study current-induced switching of the N\'eel vector in CoO/Pt bilayers to understand the underlaying antiferromagnetic switching mechanism. Surprisingly, we find that for ultra-thin CoO/Pt bilayers electrical pulses along the same path can lead t
Externí odkaz:
http://arxiv.org/abs/2303.13308
Autor:
Meer, Hendrik, Wust, Stephan, Schmitt, Christin, Herrgen, Paul, Fuhrmann, Felix, Hirtle, Steffen, Bednarz, Beatrice, Rajan, Adithya, Ramos, Rafael, Niño, Miguel Angel, Foerster, Michael, Kronast, Florian, Kleibert, Armin, Rethfeld, Baerbel, Saitoh, Eiji, Stadtmüller, Benjamin, Aeschlimann, Martin, Kläui, Mathias
Publikováno v:
Adv. Funct. Mater. 2023, 2213536
We demonstrate how the antiferromagnetic order in heterostructures of NiO/Pt thin films can be modified by optical pulses. We irradiate our samples with laser light and identify an optically induced creation of antiferromagnetic domains by imaging th
Externí odkaz:
http://arxiv.org/abs/2210.11009
Autor:
Kikkawa, Takashi, Oyanagi, Koichi, Hioki, Tomosato, Ishida, Masahiko, Qiu, Zhiyong, Ramos, Rafael, Hashimoto, Yusuke, Saitoh, Eiji
Publikováno v:
Phys. Rev. Materials 6, 104402 (2022)
We have investigated hybridized magnon-phonon excitation (magnon polarons) in spin Seebeck effects (SSEs) in Bi$_x$Y$_{3-x}$Fe$_{5}$O$_{12}$ (Bi$_x$Y$_{3-x}$IG; $x=0$, $0.5$, and $0.9$) films with Pt contact. We observed sharp peak structures in the
Externí odkaz:
http://arxiv.org/abs/2210.03346
Autor:
De la Garza Ramos, Rafael1,2 (AUTHOR) jessica.ryvlin@einsteinmed.org, Ryvlin, Jessica1 (AUTHOR) alihaider2022-010@stmu.edu.pk, Bangash, Ali Haider1 (AUTHOR) hamadmousa@gmail.com, Hamad, Mousa K.1,2 (AUTHOR) mfourman@montefiore.org, Fourman, Mitchell S.1,3 (AUTHOR) ygelfand@montefiore.org, Shin, John H.4 (AUTHOR) shin.john@mgh.harvard.edu, Gelfand, Yaroslav1,2 (AUTHOR) samurthy@montefiore.org, Murthy, Saikiran1,2 (AUTHOR) ryassari@montefiore.org, Yassari, Reza1,2 (AUTHOR)
Publikováno v:
Cancers. Aug2024, Vol. 16 Issue 15, p2741. 11p.
Identifiying the domain wall spin structure in current-induced switching of antiferromagnetic NiO/Pt
Autor:
Schmitt, Christin, Sanchez-Tejerina, Luis, Filianina, Mariia, Fuhrmann, Felix, Meer, Hendrik, Ramos, Rafael, Maccherozzi, Francesco, Backes, Dirk, Saitoh, Eiji, Finocchio, Giovanni, Baldrati, Lorenzo, Kläui, Mathias
The understanding of antiferromagnetic domain walls, which are the interface between domains with different N\'eel order orientations, is a crucial aspect to enable the use of antiferromagnetic materials as active elements in future spintronic device
Externí odkaz:
http://arxiv.org/abs/2209.02040
Autor:
Anadón, Alberto, Martin, Elodie, Homkar, Suvidyakumar, Meunier, Benjamin, Verges, Maxime, Damas, Heloise, Alegre, Junior, Lefevre, Christophe, Roulland, Francois, Dubs, Carsten, Lindner, Morris, Pasquier, Ludovic, Copie, Olivier, Dumesnil, Karine, Ramos, Rafael, Preziosi, Daniele, Petit-Watelot, Sébastien, Viart, Nathalie, Rojas-Sánchez, Juan-Carlos
In recent years, multifunctional materials have attracted increasing interest for magnetic memories and energy harvesting applications. Magnetic insulating materials are of special interest for this purpose, since they allow the design of more effici
Externí odkaz:
http://arxiv.org/abs/2206.13426
Autor:
Daimon, Shunsuke, Tsunekawa, Kakeru, Kawakami, Shinji, Kikkawa, Takashi, Ramos, Rafael, Oyanagi, Koichi, Ohtsuki, Tomi, Saitoh, Eiji
Publikováno v:
Nature Communications 13, 3160 (2022)
When the electric conductance of a nano-sized metal is measured at low temperatures, it often exhibits complex but reproducible patterns as a function of external magnetic fields, called quantum fingerprints in electric conductance. Such complex patt
Externí odkaz:
http://arxiv.org/abs/2206.05882
Autor:
Wust, Stephan, Seibel, Christopher, Meer, Hendrik, Herrgen, Paul, Schmitt, Christin, Baldrati, Lorenzo, Ramos, Rafael, Kikkawa, Takashi, Saitoh, Eiji, Gomonay, Olena, Sinova, Jairo, Mokrousov, Yuriy, Schneider, Hans Christian, Kläui, Mathias, Rethfeld, Baerbel, Stadtmüller, Benjamin, Aeschlimann, Martin
We report the ultrafast, (sub)picosecond reduction of the antiferromagnetic order of the insulating NiO thin film in a Pt/NiO bilayer. This reduction of the antiferromagnetic order is not present in pure NiO thin films after a strong optical excitati
Externí odkaz:
http://arxiv.org/abs/2205.02686
Autor:
Meer, Hendrik, Gomonay, Olena, Schmitt, Christin, Ramos, Rafael, Schnitzspan, Leo, Kronast, Florian, Mawass, Mohamad-Assaad, Valencia, Sergio, Saitoh, Eiji, Sinova, Jairo, Baldrati, Lorenzo, Kläui, Mathias
We demonstrate how shape-induced strain can be used to control antiferromagnetic order in NiO/Pt thin films. For rectangular elements patterned along the easy and hard magnetocrystalline anisotropy axes of our film, we observe different domain struct
Externí odkaz:
http://arxiv.org/abs/2205.02983