Zobrazeno 1 - 10
of 143
pro vyhledávání: '"YOUSSEF, JAMAL"'
Autor:
Siegl, Luise, Schlitz, Richard, Youssef, Jamal Ben, Runge, Christian, Kamra, Akashdeep, Legrand, William, Huebl, Hans, Lammel, Michaela, Goennenwein, Sebastian T. B.
State tomography allows to characterize quantum states, and was recently applied to reveal the dynamic magnetization state of a parametrically driven magnet. The identification of non-classical states, such as squeezed states, relies on a careful ana
Externí odkaz:
http://arxiv.org/abs/2404.17327
Autor:
Merbouche, Hugo, Che, Ping, Srivastava, Titiksha, Beaulieu, Nathan, Youssef, Jamal Ben, Muñoz, Manuel, d'Aquino, Massimiliano, Serpico, Claudio, de Loubens, Grégoire, Bortolotti, Paolo, Anane, Abdelmadjid, Demokritov, Sergej O., Demidov, Vladislav E.
We study experimentally the processes of parametric excitation in microscopic magnetically saturated disks of nanometer-thick Yttrium Iron Garnet. We show that, depending on the relative orientation between the parametric pumping field and the static
Externí odkaz:
http://arxiv.org/abs/2306.16094
Autor:
Gouéré, Diane, Merbouche, Hugo, Kanj, Aya El, Kohl, Felix, Carrétéro, Cécile, Boventer, Isabella, Lebrun, Romain, Bortolotti, Paolo, Cros, Vincent, Youssef, Jamal Ben, Anane, Abdelmadjid
Publikováno v:
Phys. Rev. Materials 6, 114402 (2022)
Thin garnet films are becoming central for magnon-spintronics and spin-orbitronics devices as they show versatile magnetic properties together with low magnetic losses. These fields would benefit from materials in which heat does not affect the magne
Externí odkaz:
http://arxiv.org/abs/2302.00585
Autor:
Srivastava, Titiksha, Merbouche, Hugo, Yemeli, Igor Ngouagnia, Beaulieu, Nathan, Youssef, Jamal Ben, Munoz, Manuel, Che, Ping, Bortolotti, Paolo, Cros, Vincent, Klein, Olivier, Sangiao, Soraya, De Teresa, Jose Maria, Demokritov, Sergej, Demidov, Vladislav, Anane, Abdelmadjid, Serpico, Claudio, d'Aquino, Massimiliano, de Loubens, Gregoire
We present the parametric excitation of spin-wave modes in YIG micro-disks via parallel pumping. Their spectroscopy is performed using magnetic resonance force microscopy (MRFM), while their spatial profiles are determined by micro-focus Brillouin li
Externí odkaz:
http://arxiv.org/abs/2301.13468
Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
Autor:
Kohno, Ryuhei, An, Kyongmo, Clot, Eric, Naletov, Vladimir V., Thiery, Nicolas, Vila, Laurent, Schlitz, Richard, Beaulieu, Nathan, Youssef, Jamal Ben, Anane, Madjid, Cros, Vincent, Merbouche, Hugo, Hauet, Thomas, Demidov, Vladislav E., Demokritov, Sergej O., de Loubens, Gregoire, Klein, Olivier
This review provides a comprehensive study of the nonlinear transport properties of magnons, which are electrically emitted or absorbed inside extended YIG films by spin transfer effects via a YIG$\vert$Pt interface. Our purpose is to experimentally
Externí odkaz:
http://arxiv.org/abs/2210.08304
Autor:
Kohno, Ryuhei, An, Kyongmo, Clot, Eric, Naletov, Vladimir V., Thiery, Nicolas, Vila, Laurent, Schlitz, Richard, Beaulieu, Nathan, Youssef, Jamal Ben, Anane, Madjid, Cros, Vincent, Merbouche, Hugo, Hauet, Thomas, Demidov, Vladislav E., Demokritov, Sergej O., de Loubens, Gregoire, Klein, Olivier
This review presents a comprehensive study of the spatial dispersion of propagating magnons electrically emitted in extended yttrium-iron garnet (YIG) films by the spin transfer effects across a YIG$\vert$Pt interface. Our goal is to provide a generi
Externí odkaz:
http://arxiv.org/abs/2210.08283
Autor:
Divinskiy, B., Merbouche, H., Demidov, V. E., Nikolaev, K. O., Soumah, L., Gouéré, D., Lebrun, R., Cros, V., Youssef, Jamal Ben, Bortolotti, P., Anane, A., Demokritov, S. O.
Publikováno v:
Nat. Commun. 12, 6541 (2021)
The quanta of magnetic excitations - magnons - are known for their unique ability to undergo Bose-Einstein condensation at room temperature. This fascinating phenomenon reveals itself as a spontaneous formation of a macroscopic coherent state under t
Externí odkaz:
http://arxiv.org/abs/2111.06356
Autor:
An, Kyongmo, Kohno, Ryuhei, Litvinenko, Artem N., Seeger, Rafael Lopes, Naletov, Vladimir V., Vila, Laurent, de Loubens, Gregoire, Youssef, Jamal Ben, Vukadinovic, Nicolas, Bauer, Gerrit E. W., Slavin, Andrei N., Tiberkevich, Vasyl S., Klein, Olivier
We study the collective dynamics of two distant magnets coherently coupled by acoustic phonons that are transmitted through an intercalated crystal. By tuning the ferromagnetic resonances of the two magnets to an acoustic resonance of the crystal, we
Externí odkaz:
http://arxiv.org/abs/2108.13272
Autor:
Kohno, Ryuhei, Thiery, Nicolas, An, Kyongmo, Noël, Paul, Vila, Laurent, Naletov, Vladimir V., Beaulieu, Nathan, Youssef, Jamal Ben, de Loubens, Grégoire, Klein, Olivier
We report that Joule heating can be used to enhance the interfacial spin conductivity between a metal and an oxide. We observe that local annealing of the interface at about 550\,K by injecting large current densities ($>10^{12}\text{A/m}^{2}$) into
Externí odkaz:
http://arxiv.org/abs/2009.02785
Autor:
An, Kyongmo, Kohno, Ryuhei, Thiery, Nicolas, Reitz, Derek, Vila, Laurent, Naletov, Vladimir V., Beaulieu, Nathan, Youssef, Jamal Ben, de Loubens, Grégoire, Tserkovnyak, Yaroslav, Klein, Olivier
Publikováno v:
Phys. Rev. B 103, 174432 (2021)
Using the spin Seebeck effect (SSE), we study the propagation distance of thermal spin currents inside a magnetic insulator thin film in the short-range regime. We disambiguate spin currents driven by temperature and chemical potential gradients by c
Externí odkaz:
http://arxiv.org/abs/2008.10942