116 citations · 532 across the 20 of their papers we have counts for
17 papers · 1 filter
Disorder-induced chirality in superconductor-ferromagnet heterostructures revealed by neutron scattering and multiscale modeling
Annika Stellhorn, Juan G. C. Palma, Alicia Backs +10
Chirality in superconductor-ferromagnet hybrids strongly influences phenomena such as the observable signatures of long-range triplet superconductivity, but its microscopic origin…
Real-space first-principles approach to orbitronic phenomena in metallic multilayers
Ramon Cardias, Hugo U. R. Strand, Anders Bergman +2
We develop a real-space first-principles method based on density functional theory to investigate orbitronic phenomena in complex materials. Using the Real-Space Linear Muffin-Tin…
Spin-lattice couplings in ferromagnets: analysis from first-principles
I. P. Miranda, M. Pankratova, M. Weißenhofer +8
Magnetoelasticity plays a crucial role in numerous magnetic phenomena, including magnetocalorics, magnon excitation via acoustic waves, and ultrafast demagnetization/Einstein-de Ha…
Proximity-induced flipped spin state in synthetic ferrimagnetic Pt/Co/Gd heterolayers
J. Brandão, P. C. Carvalho, I. P. Miranda +6
To develop new devices based on synthetic ferrimagnetic heterostructures, understanding the material's physical properties is pivotal. Here, the induced magnetic moment (IMM), magn…
Unraveling the connection between high-order magnetic interactions and local-to-global spin Hamiltonian in non-collinear magnetic dimers
Ramon Cardias, Jhonatan dos Santos Silva, Anders Bergman +7
A spin Hamiltonian, which characterizes interatomic interactions between spin moments, is highly valuable in predicting and comprehending the magnetic properties of materials. A de…
Band filling effects on the emergence of magnetic skyrmions: Pd/Fe and Pd/Co bilayers on Ir(111)
I. P. Miranda, A. B. Klautau, A. Bergman +1
Structurally similar transition metal systems can have widely differing magnetic properties. A prime example of this is found for bilayers on Ir(111), where Pd/Fe/Ir(111) ground st…
Complex magnetic textures in Ni/Ir/Pt(111) ultrathin films
P. C. Carvalho, I. P. Miranda, A. B. Klautau +2
A combined approach using first-principles calculations and spin dynamics simulations is applied to study Ni/Ir/Pt(111) () films. The lowest-energy states are predic…
Chiral Spin and Orbital Angular Momentum Textures in Mn Chains on W(110): Interplay of Spin-Orbit Coupling and Crystal Field Effects
M. M. Bezerra-Neto, Y. O. Kvashnin, A. Bergman +5
Stabilization of unusual spin-orbit driven magnetic orderings are achieved for chains of Mn atoms deposited on a W(110) substrate. First-principles electronic structure calculation…
Mechanisms behind large Gilbert damping anisotropies
I. P. Miranda, A. B. Klautau, A. Bergman +3
A method with which to calculate the Gilbert damping parameter from a real-space electronic structure method is reported here. The anisotropy of the Gilbert damping with respect to…
First-principles Dzyaloshinskii-Moriya interaction in a non-collinear framework
R. Cardias, A. Szilva, M. M. Bezerra-Neto +7
We have derived an expression of the Dzyaloshinskii-Moriya (DM) interaction, where all the three components of the DM vector can be calculated independently, for a general, non-col…
Dzyaloshinskii-Moriya interaction in absence of spin-orbit coupling
Ramon Cardias, Anders Bergman, Attila Szilva +5
In contrast to conventional assumptions, we show that the Dzyaloshinskii-Moriya interaction can be of non-relativistic origin, in particular in materials with a non-collinear magne…
Theory of non-collinear interactions beyond Heisenberg exchange; applications to bcc Fe
A. Szilva, D. Thonig, P. F. Bessarab +8
We show for a simple non-collinear configuration of the atomistic spins (in particular, where one spin is rotated by a finite angle in a ferromagnetic background) that the pairwise…
Magnetic anisotropy in Permalloy: hidden quantum mechanical features
Debora C M Rodrigues, Angela B Klautau, Alexander Edström +5
By means of relativistic, first principles calculations, we investigate the microscopic origin of the vanishingly low magnetic anisotropy of Permalloy, here proposed to be intrinsi…
Magnetism and ultra-fast magnetization dynamics of Co and CoMn alloys at finite temperature
R. Chimata, E. K. Delczeg-Czirjak, A. Szilva +9
Temperature-dependent magnetic experiments like pump-probe measurements generated by a pulsed laser have become a crucial technique for switching the magnetization in the picosecon…
Microscopic origin of Heisenberg and non-Heisenberg exchange interactions in ferromagnetic bcc Fe
Y. O. Kvashnin, R. Cardias, A. Szilva +6
By means of first principles calculations we investigate the nature of exchange coupling in ferromagnetic bcc Fe on a microscopic level. Analyzing the basic electronic structure re…
Magnetic structure of Fe, Mn, and Cr clusters supported on Cu(111)
Anders Bergman, Lars Nordstrom, Angela Burlamaqui Klautau +2
The magnetic structures of small clusters of Fe, Mn, and Cr supported on a Cu(111) surface have been studied with non-collinear first principles theory. Different geometries such a…
Magnetic interactions of supported magnetic clusters
Anders Bergman, Lars Nordstrom, Angela Burlamaqui Klautau +2
It is demonstrated that the magnetic interactions can be drastically different for nano-sized systems compared to those of bulk or surfaces. Using a real-space formalism we have de…