Zobrazeno 1 - 10
of 465
pro vyhledávání: '"A. Marmodoro"'
Atomistic spin dynamics simulations of magnonic spin Seebeck and spin Nernst effects in altermagnets
Magnon band structures in altermagnets are characterized by an energy splitting of modes with opposite chirality, even in the absence of applied external fields and relativistic effects, due to an anisotropy in the Heisenberg exchange interactions. W
Externí odkaz:
http://arxiv.org/abs/2405.20921
Autor:
Hajlaoui, M., D'Souza, S. W., Šmejkal, L., Kriegner, D., Krizman, G., Zakusylo, T., Olszowska, N., Caha, O., Michalička, J., Marmodoro, A., Výborný, K., Ernst, A., Cinchetti, M., Minar, J., Jungwirth, T., Springholz, G.
Altermagnetic (AM) materials exhibit non-relativistic, momentum-dependent spin-split states, ushering in new opportunities for spin electronic devices. While the characteristics of spin-splitting have been documented within the framework of the non-r
Externí odkaz:
http://arxiv.org/abs/2401.09187
Publikováno v:
Phys. Rev. B 108, L100403 (2023)
The Dzyaloshinskii-Moriya interaction (DMI) is an antisymmetric exchange interaction, which is responsible for the formation of topologically protected spin textures in chiral magnets. Here, by measuring the dispersion relation of the DM energy, we q
Externí odkaz:
http://arxiv.org/abs/2309.10751
Autor:
Šmejkal, Libor, Marmodoro, Alberto, Ahn, Kyo-Hoon, Gonzalez-Hernandez, Rafael, Turek, Ilja, Mankovsky, Sergiy, Ebert, Hubert, D'Souza, Sunil W., Šipr, Ondřej, Sinova, Jairo, Jungwirth, Tomas
Magnons in ferromagnets have one chirality, and typically are in the GHz range and have a quadratic dispersion near the zero wavevector. In contrast, magnons in antiferromagnets are commonly considered to have bands with both chiralities that are deg
Externí odkaz:
http://arxiv.org/abs/2211.13806
Laves RFe2 compounds, where R is a rare earth, exhibit technologically relevant properties associated with the interplay between their lattice geometry and magnetism. We apply ab~initio calculations to explore how magnetic properties of Fe in RFe2 sy
Externí odkaz:
http://arxiv.org/abs/2208.01477
We explore possibilities for control of magnons in two-dimensional heterostructures by an external electric field acting across a dielectric barrier. By performing ab-initio calculations for a Fe monolayer and a Fe bilayer, both suspended in vacuum a
Externí odkaz:
http://arxiv.org/abs/2202.04525
Autor:
Volny, J., Holy, V., Charvatova, K., Veis, M., Vondracek, M., Honolka, J., Duverger-Nedellec, E., Schusser, J., D'Souza, S. W., Minar, J., Pientka, J. M., Marmodoro, A., Vyborny, K., Uhlirova, K.
Publikováno v:
Phys. Rev. B 105 (2022) 125204
We report synthesis of single crystalline NaMnAs, confirm its antiferromagnetic order and characterise the sample by photoemission spectroscopy. The electronic structure was studied using optical transmittance, x-ray and ultraviolet spectroscopy and
Externí odkaz:
http://arxiv.org/abs/2109.03348
The impact of an applied electric field on the exchange coupling parameters has been investigated based on first-principles electronic structure calculations by means of the KKR Green function method. The calculations have been performed for a Fe fil
Externí odkaz:
http://arxiv.org/abs/2108.00932
Autor:
Reiter, Florian1 (AUTHOR) florian.reiter@jku.at, Marmodoro, Alberto2,3,4 (AUTHOR), Mardare, Andrei Ionut1 (AUTHOR), Mardare, Cezarina Cela1 (AUTHOR), Hassel, Achim Walter1,5 (AUTHOR) florian.reiter@jku.at, Ernst, Arthur6,7 (AUTHOR), Hoffmann, Martin6 (AUTHOR)
Publikováno v:
Materials (1996-1944). Jun2024, Vol. 17 Issue 11, p2743. 17p.
Autor:
Krizek, Filip, Reimers, Sonka, Kašpar, Zdeněk, Marmodoro, Alberto, Michalička, Jan, Man, Ondřej, Edstrom, Alexander, Amin, Oliver J., Edmonds, Kevin W., Campion, Richard P., Maccherozzi, Francesco, Dnes, Sarnjeet S., Zubáč, Jan, Železný, Jakub, Výborný, Karel, Olejník, Kamil, Novák, Vít, Rusz, Jan, Idrobo, Juan C., Wadley, Peter, Jungwirth, Tomas
Publikováno v:
Science advances, 8(13), eabn3535 (2022)
The interest in understanding scaling limits of magnetic textures such as domain walls spans the entire field of magnetism from its relativistic quantum fundamentals to applications in information technologies. The traditional focus of the field on f
Externí odkaz:
http://arxiv.org/abs/2012.00894