Zobrazeno 1 - 10
of 330
pro vyhledávání: '"Thonig, A."'
Autor:
Miranda, I. P., Pankratova, M., Weißenhofer, M., Klautau, A. B., Thonig, D., Pereiro, M., Sjöqvist, E., Delin, A., Katsnelson, M. I., Eriksson, O., Bergman, A.
Magnetoelasticity plays a crucial role in numerous magnetic phenomena, including magnetocalorics, magnon excitation via acoustic waves, and ultrafast demagnetization/Einstein-de Haas effect. Despite a long-standing discussion on anisotropy-mediated m
Externí odkaz:
http://arxiv.org/abs/2409.18274
Autor:
Azimi-Mousolou, Vahid, Bergman, Anders, Delin, Anna, Eriksson, Olle, Pereiro, Manuel, Thonig, Danny, Sjöqvist, Erik
Toroidal classification and geometric duality in quantum spin systems is presented. Through our classification and duality, we reveal that various bipartite quantum features in magnon-systems can manifest equivalently in both bipartite ferromagnetic
Externí odkaz:
http://arxiv.org/abs/2406.13830
Magnetic skyrmions have garnered attention for their potential roles in spintronic applications, such as information carriers in computation, data storage, and nano-oscillators due to their small size, topological stability, and the requirement of sm
Externí odkaz:
http://arxiv.org/abs/2405.10571
Autor:
Lu, Zhiwei, Miranda, I. P., Streib, Simon, Xu, Qichen, Cheenikundil, Rajgowrav, Pereiro, Manuel, Sjöqvist, Erik, Eriksson, Olle, Bergman, Anders, Thonig, Danny, Delin, Anna
The impact of the local chemical environment on the Gilbert damping in the binary alloy Fe$_{100-x}$Co$_{x}$ is investigated, using computations based on density functional theory. By varying the alloy composition x as well as Fe/Co atom positions we
Externí odkaz:
http://arxiv.org/abs/2405.02494
Autor:
Liu, Yuefei, Miranda, Ivan P., Johnson, Lee, Bergman, Anders, Delin, Anna, Thonig, Danny, Pereiro, Manuel, Eriksson, Olle, Mousolou, Vahid Azimi, Sjöqvist, Erik
Publikováno v:
Phys. Rev. Lett. 133, 266704 (2024)
The Landau-Lifshitz-Gilbert (LLG) and Landau-Lifshitz (LL) equations play an essential role for describing the dynamics of magnetization in solids. While a quantum analog of the LL dynamics has been proposed in [Phys. Rev. Lett. 110, 147201 (2013)],
Externí odkaz:
http://arxiv.org/abs/2403.09255
Autor:
Xu, Qichen, Shen, Zhuanglin, Edström, Alexander, Miranda, I. P., Lu, Zhiwei, Bergman, Anders, Thonig, Danny, Yin, Wanjian, Eriksson, Olle, Delin, Anna
Despite extensive research on magnetic skyrmions and antiskyrmions, a significant challenge remains in crafting nontrivial high-order skyrmionic textures with varying, or even tailor-made, topologies. We address this challenge, by focusing on a const
Externí odkaz:
http://arxiv.org/abs/2402.10874
Autor:
Mottamchetty, Venkatesh, Brucas, Rimantas, Ravensburg, Anna L., Maciel, Renan, Thonig, Danny, Henk, Jurgen, Gupta, Rahul, Roos, Arne, Tai, Cheuk Wai, Kapaklis, Vassilios, Svedlindh, Peter
We report efficient terahertz (THz) generation in epitaxial $\alpha$-W/Co$_{60}$Fe$_{40}$ spintronic emitters. Two types of emitters have been investigated; epitaxial $\alpha$-W$(110)$/Co$_{60}$Fe$_{40}(110)$ and $\alpha$-W$(001)$/Co$_{60}$Fe$_{40}(0
Externí odkaz:
http://arxiv.org/abs/2401.10123
Autor:
Cardias, Ramon, Streib, Simon, Lu, Zhiwei, Pereiro, Manuel, Bergman, Anders, Sjöqvist, Erik, Barreteau, Cyrille, Delin, Anna, Eriksson, Olle, Thonig, Danny
We developed a method which performs the coupled adiabatic spin and lattice dynamics based on the tight-binding electronic structure model, where the intrinsic magnetic field and ionic forces are calculated from the converged self-consistent electron
Externí odkaz:
http://arxiv.org/abs/2311.00765
Autor:
Pankratova, M., Miranda, I. P., Thonig, D., Pereiro, M., Sjoqvist, E., Delin, A., Scheid, P., Eriksson, O., Bergman, A.
Publikováno v:
Scientific Reports 14, 8138 (2024)
We study the ultrafast magnetization dynamics of bcc Fe and fcc Co using the recently suggested heat-conserving three-temperature model (HC3TM), together with atomistic spin- and lattice dynamics simulations. It is shown that this type of Langevin-ba
Externí odkaz:
http://arxiv.org/abs/2308.08996
Autor:
Xu, Qichen, Miranda, I. P., Pereiro, Manuel, Rybakov, Filipp N., Thonig, Danny, Sjöqvist, Erik, Bessarab, Pavel, Bergman, Anders, Eriksson, Olle, Herman, Pawel, Delin, Anna
We present a metaheuristic conditional neural-network-based method aimed at identifying physically interesting metastable states in a potential energy surface of high rugosity. To demonstrate how this method works, we identify and analyze spin textur
Externí odkaz:
http://arxiv.org/abs/2303.02876