Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Grassi, Matías"'
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
Publikováno v:
Journal of Physics: Condensed Matter 36, 405804 (2024)
We investigate the magnetization dynamics in nanomagnet vertices often found in artificial spin ices. Our analysis involves creating a simplified model that depicts edge magnetization using magnetic charges. We utilize the model to explore the energy
Externí odkaz:
http://arxiv.org/abs/2402.03036
The effect of iron layer thickness on the interlayer exchange coupling in Fe/MgO (001) superlattices
Publikováno v:
Phys. Rev. B 109, 224404 (2024)
We describe the effect of the Fe layer thickness on the antiferromagnetic interlayer exchange coupling in [Fe/MgO]$_N$ superlattices. An increase in coupling strength with increasing Fe layer thickness is observed, which highlights the need of includ
Externí odkaz:
http://arxiv.org/abs/2401.08336
We numerically study a mesoscopic system consisting of magnetic nanorings in the presence of thermal magnetization fluctuations. We find the formation of dipolar-field-mediated ``bonds" promoting the formation of annuli clusters, where the amount of
Externí odkaz:
http://arxiv.org/abs/2302.11353
Autor:
Weiss, Charles, Grassi, Matías, Roussigné, Yves, Stashkevich, Andrey, Schefer, Thomas, Robert, Jerome, Bailleul, Matthieu, Kostylev, Mikhail
We report on propagating spin-wave spectroscopy measurements carried out on coplanar nano-antenna devices made from a Si/SiO$_2$/Ru(5nm)/Co(20)/Pt(5nm) film. The measurements were analyzed in detail by employing newly developed theoretical modeling a
Externí odkaz:
http://arxiv.org/abs/2111.11111
Autor:
Grassi, Matías, Geilen, Moritz, Oukaci, Kosseila Ait, Henry, Yves, Lacour, Daniel, Stoeffer, Daniel, Hehn, Michel, Pirro, Philipp, Bailleul, Matthieu
Publikováno v:
Phys. Rev. B 105, 094444 (2022)
Spontaneous symmetry breaking is ubiquitous in physics. Its spectroscopic signature consists in the softening of a specific mode upon approaching the transition from the high symmetry side and its subsequent splitting into a zero-frequency "Goldstone
Externí odkaz:
http://arxiv.org/abs/2110.00882
Autor:
Grassi, Matías, Geilen, Moritz, Louis, Damien, Mohseni, Morteza, Brächer, Thomas, Hehn, Michel, Stoeffler, Daniel, Bailleul, Matthieu, Pirro, Philipp, Henry, Yves
Publikováno v:
Phys. Rev. Applied 14, 024047 (2020)
Spin waves, the collective excitations of the magnetic order parameter, and magnons, the associated quasiparticles, are envisioned as possible data carriers in future wave-based computing architectures. On the road towards spin-wave computing, the de
Externí odkaz:
http://arxiv.org/abs/1912.09735
Autor:
Weiss, Charles, Grassi, Matías, Roussigné, Yves, Stashkevich, Andrey, Schefer, Thomas, Robert, Jerome, Bailleul, Matthieu, Kostylev, Mikhail
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 January 2023 565
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