Zobrazeno 1 - 10
of 926
pro vyhledávání: '"Förster Michael"'
Autor:
Vantaraki, Christina, Grassi, Matías P., Ignatova, Kristina, Foerster, Michael, Arnalds, Unnar B., Primetzhofer, Daniel, Kapaklis, Vassilios
We investigate the design of magnetic ordering in one-dimensional mesoscopic magnetic Ising chains by modulating long-range interactions. These interactions are affected by geometrical modifications to the chain, which adjust the energy hierarchy and
Externí odkaz:
http://arxiv.org/abs/2410.21903
Autor:
Vantaraki, Christina, Ström, Petter, Tran, Tuan T., Grassi, Matías P., Fevola, Giovanni, Foerster, Michael, Sadowski, Jerzy T., Primetzhofer, Daniel, Kapaklis, Vassilios
Publikováno v:
Appl. Phys. Lett. 125, 202403 (2024)
We present a method for the additive fabrication of planar magnetic nanoarrays with minimal surface roughness. Synthesis is accomplished by combining electron-beam lithography, used to generate nanometric patterned masks, with ion implantation in thi
Externí odkaz:
http://arxiv.org/abs/2409.10433
Autor:
Rovirola, Marc, Khaliq, M. Waqas, Casals, Blai, Begué, Adrian, Biskup, Neven, Coton, Noelia, Hernàndez, Joan Manel, Niño, Miguel Angel, Foerster, Michael, Hernández-Mínguez, Alberto, Ranchal, Rocío, Costache, Marius V., García-Santiago, Antoni, Macià, Ferran
The interaction between surface acoustic waves and magnetization offers an efficient route for electrically controlling magnetic states. Here, we demonstrate the excitation of magnetoacoustic waves in galfenol, a highly magnetostrictive alloy made of
Externí odkaz:
http://arxiv.org/abs/2409.04370
Autor:
Korniienko, Anastasiia, Wartelle, Alexis, Kronseder, Matthias, Zeller, Viola, Foerster, Michael, Niño, Miguel Ángel, Ruiz-Gomes, Sandra, Khaliq, Muhammad Waqas, Weigand, Markus, Wintz, Sebastian, Back, Christian H.
We present a study on the static magnetic properties of individual $\text{GaAs}$-$\text{Fe}_{\text{33}}\text{Co}_{\text{67}}$ core-shell nanorods. X-ray Magnetic Circular Dichroism combined with Photoemission Electron Microscopy (XMCD-PEEM) and Scann
Externí odkaz:
http://arxiv.org/abs/2408.15036
Autor:
Ruiz-Gomez, Sandra, Abert, Claas, Morales-Fernández, Pamela, Fernandez-Gonzalez, Claudia, Koraltan, Sabri, Danesi, Lukas, Suess, Dieter, Foerster, Michael, Nino, Miguel Ángel, Mandziak, Anna, Wilgocka-Ślęzak, Dorota, Nita, Pawel, Koenig, Markus, Seifert, Sebastian, Rodríguez, Aurelio Hierro, Fernández-Pacheco, Amalio, Donnelly, Claire
Topological defects, or singularities, play a key role in the statics and dynamics of complex systems. In magnetism, Bloch point singularities represent point defects that mediate the nucleation of textures such as skyrmions and hopfions. However, wh
Externí odkaz:
http://arxiv.org/abs/2404.06042
Autor:
Begué, Adrián, Khaliq, Muhammad Waqas, Cotón, Noelia, Cabrera, Alejandro, Niño, Miguel Ángel, Foerster, Michael, Ranchal, Rocío
The study investigates the manipulation of the magnetic anisotropy in a thick (1 $\mu$m) Ni$_{90}$Fe$_{10}$ layer electrodeposited on a ferroelectric BaTiO$_3$(001) substrate, using a combination of Magneto-optical Kerr Effect, Photoemission Electron
Externí odkaz:
http://arxiv.org/abs/2401.13487
Autor:
Rovirola, Marc, Khaliq, Muhammad Waqas, Gustafson, Travis, Sosa, Fiona, Casals, Blai, Hernàndez, Joan Manel, Ruiz-Gómez, Sandra, Niño, Miguel Angel, Aballe, Lucía, Hernández-Mínguez, Alberto, Foerster, Michael, Macià, Ferran
We use surface acoustic waves of 1 and 3 GHz in hybrid piezoelectric-magnetic systems with either cobalt or nickel as a magnetic layer to generate magnetoacoustic waves and directly image them using stroboscopic X-ray magnetic circular dichroism imag
Externí odkaz:
http://arxiv.org/abs/2312.15269
Autor:
Ruiz-Gómez, Sandra, Trapero, Eva María, Fernández-González, Claudia, del Campo, Adolfo, Granados-Miralles, Cecilia, Prieto, José Emilio, Khaliq, Muhammad Waqas, Niño, Miguel Angel, Foerster, Michael, Aballe, Lucía, de la Figuera, Juan
Publikováno v:
Cryst. Growth Des. 23 (2023) 5785-5791
We have grown high-quality magnetite micrometric islands on ruthenium stripes on sapphire through a combination of magnetron sputtering (Ru film), high-temperature molecular beam epitaxy (oxide islands), and optical lithography. The samples have been
Externí odkaz:
http://arxiv.org/abs/2309.14376
Autor:
Mandziak, Anna, Soria, Guiomar D., Prieto, José Emilio, Prieto, Pilar, Granados-Miralles, Cecilia, Quesada, Adrian, Foerster, Michael, Aballe, Lucia, de la Figuera, Juan
Publikováno v:
Sci. Rep. 9 (2019) 13584
We show that it is possible to tune the N\'eel temperature of nickel(II)-cobalt(II) oxide films by changing the Ni to Co ratio. We grow single crystalline micrometric triangular islands with tens of nanometers thickness on a Ru(0001) substrate using
Externí odkaz:
http://arxiv.org/abs/2309.13721
Autor:
Khaliq, M. Waqas, Amin, Oliver, Hernández-Mínguez, Alberto, Rovirola, Marc, Casals, Blai, Omari, Khalid, Ruiz-Gómez, Sandra, Finizio, Simone, Campion, Richard P., Edmonds, Kevin W., Novak, Vıt, Mandziak, Anna, Aballe, Lucia, Niño, Miguel Angel, Hernàndez, Joan Manel, Wadley, Peter, Macià, Ferran, Foerster, Michael
Magnetoelastic effects in antiferromagnetic CuMnAs are investigated by applying dynamic strain in the 0.01% range through surface acoustic waves in the GaAs substrate. The magnetic state of the CuMnAs/GaAs is characterized by a multitude of submicron
Externí odkaz:
http://arxiv.org/abs/2309.08893