122 citations · 335 across the 9 of their papers we have counts for
10 papers
Tuning paramagnetic spin-excitations of single adatoms
J. Ibañez-Azpiroz, M. dos Santos Dias, B. Schweflinghaus +2
Around 50 years ago, Doniach [Proc. Phys. Soc. 91, 86 (1967)] predicted the existence of paramagnons in nearly ferromagnetic materials, recently measured in bulk Pd [Phys. Rev. Let…
Engineering elliptical spin-excitations by complex anisotropy fields in Fe adatoms and dimers on Cu(111)
Filipe S. M. Guimarães, Manuel dos Santos Dias, Benedikt Schweflinghaus +1
We investigate the dynamics of Fe adatoms and dimers deposited on the Cu(111) metallic surface in the presence of spin-orbit coupling, within time-dependent density functional theo…
Role of Dzyaloshinskii-Moriya interaction for magnetism in transition-metal chains at Pt step-edges
Benedikt Schweflinghaus, Bernd Zimmermann, Marcus Heide +2
We explore the emergence of chiral magnetism in one-dimensional monatomic Mn, Fe, and Co chains deposited at the Pt(664) step-edge carrying out an ab-initio study based on density…
Spin excitations in 3d transition-metal adatoms on Pt(111): Observable with inelastic scanning tunneling spectroscopy or not?
Benedikt Schweflinghaus, Manuel dos Santos Dias, Samir Lounis
Spin excitations in atomic-scale nanostructures have been investigated with inelastic scanning tunneling spectroscopy, sometimes with conflicting results. In this work we present a…
Perpendicular Reading of Single Confined Magnetic Skyrmions
Dax M. Crum, Mohammed Bouhassoune, Juba Bouaziz +3
Thin-film sub-5 nm magnetic skyrmions constitute an ultimate scaling alternative for future digital data storage. Skyrmions are robust non-collinear spin-textures that can be moved…
Relativistic dynamical spin excitations of magnetic adatoms
Manuel dos Santos Dias, Benedikt Schweflinghaus, Stefan Blügel +1
We present a first-principles theory of dynamical spin excitations in the presence of spin-orbit coupling. The broken global spin rotational invariance leads to a new sum rule. We…
Transverse dynamical magnetic susceptibilities from regular static density functional theory: Evaluation of damping and g-shifts of spin-excitations
Samir Lounis, Manuel dos Santos Dias, Benedikt Schweflinghaus
The dynamical transverse magnetic Kohn-Sham susceptibility calculated within time-dependent density functional theory shows a fairly linear behavior for a finite energy window. Thi…
Renormalization of electron self-energies via their interaction with spin excitations: A first-principles investigation
Benedikt Schweflinghaus, Manuel dos Santos Dias, Antonio T. Costa +1
Access to magnetic excitation spectra of single atoms deposited on surfaces is nowadays possible by means of low-temperature inelastic scanning tunneling spectroscopy. We present a…
Theoretical probing of inelastic spin-excitations in adatoms on surfaces
Samir Lounis, Benedikt Schweflinghaus, Manuel dos Santos Dias +3
We review our recent work on the simulation, description and prediction of spin-excitations in adatoms and dimers deposited on metallic surfaces. This work done together with Dougl…
Spin excitations of individual Fe atoms on Pt(111): impact of the site-dependent giant substrate polarization
Alexander Ako Khajetoorians, Tobias Schlenk, Benedikt Schweflinghaus +6
We demonstrate using inelastic scanning tunneling spectroscopy (ISTS) and simulations based on density functional theory that the amplitude and sign of the magnetic anisotropy ener…