Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Santos, Flaviano Jose dos"'
We introduce a novel application for the recently catalogued unconventional p-wave magnets as generators of nonlinear optical currents. The noncollinear spin configuration breaks the inversion symmetry of the crystal and acts as the primary driver of
Externí odkaz:
http://arxiv.org/abs/2406.19842
Publikováno v:
Phys. Rev. B 107, 195122 (2023)
Smearing techniques are widely used in first-principles calculations of metallic and magnetic materials, where they improve the accuracy of Brillouin zone sampling and lessen the impact of level-crossing instabilities. Smearing introduces a fictitiou
Externí odkaz:
http://arxiv.org/abs/2212.07988
Autor:
Zhu, Fengfeng, Zhang, Lichuan, Wang, Xiao, Santos, Flaviano José dos, Song, Junda, Mueller, Thomas, Schmalzl, Karin, Schmidt, Wolfgang F., Ivanov, Alexandre, Park, Jitae T., Xu, Jianhui, Ma, Jie, Lounis, Samir, Blügel, Stefan, Mokrousov, Yuriy, Su, Yixi, Brückel, Thomas
The bosonic analogues of topological insulators have been proposed in numerous theoretical works, but their experimental realization is still very rare, especially for spin systems. Recently, two-dimensional (2D) honeycomb van der Waals (vdW) ferroma
Externí odkaz:
http://arxiv.org/abs/2107.03835
Publikováno v:
RSC Advances, 11(2021), 8654-8663
Based on density functional theory combined with low-energy models, we explore the magnetic properties of a hybrid atomic-thick two-dimensional (2D) material made of Germanene doped with fluorine atoms in a half-fluorinated configuration (Ge2F). The
Externí odkaz:
http://arxiv.org/abs/2103.08964
Autor:
Zhang, Li-Chuan, Zhu, Fengfeng, Go, Dongwook, Lux, Fabian R., Santos, Flaviano José dos, Lounis, Samir, Su, Yixi, Blügel, Stefan, Mokrousov, Yuriy
Publikováno v:
Phys. Rev. B 103, 134414 (2021)
The properties of Kitaev materials are attracting ever increasing attention owing to their exotic properties. In realistic two-dimensional materials, Kitaev interaction is often accompanied by the Dzyloshinskii-Moriya interaction, which poses a chall
Externí odkaz:
http://arxiv.org/abs/2012.13729
Publikováno v:
Phys. Rev. B 102, 104436 (2020)
Spin waves in antiferromagnetic materials have great potential for next-generation magnonic technologies. However, their properties and their dependence on the type of ground-state antiferromagnetic structure are still open questions. Here, we invest
Externí odkaz:
http://arxiv.org/abs/2005.07250
Publikováno v:
Phys. Rev. B 102, 104401 (2020)
Broken inversion symmetry in combination with the spin-orbit interaction generates a finite Dzyaloshinskii-Moriya interaction (DMI), which can induce noncollinear spin textures of chiral nature. The DMI is characterized by an interaction vector whose
Externí odkaz:
http://arxiv.org/abs/2003.11649
Autor:
Santos, Flaviano José dos, Dias, Manuel dos Santos, Guimarães, Filipe Souza Mendes, Bouaziz, Juba, Lounis, Samir
Publikováno v:
Phys. Rev. B 97, 024431 (2018)
Topological non-collinear magnetic phases of matter are at the heart of many proposals for future information nanotechnology, with novel device concepts based on ultra-thin films and nanowires. Their operation requires understanding and control of th
Externí odkaz:
http://arxiv.org/abs/1801.02542
Autor:
Santos, Flaviano Jose dos, Bahamon, Dario A., Muniz, Roberto B., McKenna, Keith, Castro, Eduardo V., Lischner, Johannes, Ferreira, Aires
Publikováno v:
Phys. Rev. B 98, 081407(R) (2018)
Adsorbate engineering offers a seemingly simple approach to tailor spin-orbit interactions in atomically thin materials and thus to unlock the much sought-after topological insulating phases in two dimensions. However, the observation of an Anderson
Externí odkaz:
http://arxiv.org/abs/1712.07827
Publikováno v:
Phys. Rev. B 95, 134408 (2017)
We computed spin wave dispersions of surface-reconstructed Co films on the W(110) surface in the adiabatic approximation. The magnetic exchange interactions are obtained via first-principles electronic structure calculations using the Korringa-Kohn-R
Externí odkaz:
http://arxiv.org/abs/1612.00910