Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Schweflinghaus, Benedikt"'
Publikováno v:
Phys. Rev. B 96, 144401 (2017)
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 theory. The \textit{ab initio} results provide material-dependent paramete
Externí odkaz:
http://arxiv.org/abs/1707.06087
Autor:
Schweflinghaus, Benedikt, Zimmermann, Bernd, Heide, Marcus, Bihlmayer, Gustav, Blügel, Stefan
Publikováno v:
Phys. Rev. B 94, 024403 (2016)
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 functional theory (DFT). The results are analyzed employing several mo
Externí odkaz:
http://arxiv.org/abs/1603.01578
Spin excitations in atomic-scale nanostructures have been investigated with inelastic scanning tunneling spectroscopy, sometimes with conflicting results. In this work we present a theoretical viewpoint on a recent experimental controversy regarding
Externí odkaz:
http://arxiv.org/abs/1511.02469
Autor:
Crum, Dax M., Bouhassoune, Mohammed, Bouaziz, Juba, Schweflinghaus, Benedikt, Blügel, Stefan, Lounis, Samir
Publikováno v:
Nature Communications 6, Article number: 8541 (2015)
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 and manipulated by small electrical currents. We show here an innovat
Externí odkaz:
http://arxiv.org/abs/1507.06330
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 explore the competition between the magnetic anisotropy energy and the
Externí odkaz:
http://arxiv.org/abs/1501.05509
The dynamical transverse magnetic Kohn-Sham susceptibility calculated within time-dependent density functional theory shows a fairly linear behavior for a finite energy window. This observation is used to propose a scheme where the computation of thi
Externí odkaz:
http://arxiv.org/abs/1411.3630
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 first-principles method for the calculation of inelastic tunneling sp
Externí odkaz:
http://arxiv.org/abs/1406.4195
Autor:
Lounis, Samir, Schweflinghaus, Benedikt, Dias, Manuel dos Santos, Bouhassoune, Mohammed, Muniz, Roberto B., Costa, Antonio T.
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 Douglas L. Mills, is an extension of his seminal contribution (with Pascal
Externí odkaz:
http://arxiv.org/abs/1402.1113
Autor:
Khajetoorians, Alexander Ako, Schlenk, Tobias, Schweflinghaus, Benedikt, Dias, Manuel dos Santos, Steinbrecher, Manuel, Bouhassoune, Mohammed, Lounis, Samir, Wiebe, Jens, Wiesendanger, Roland
We demonstrate using inelastic scanning tunneling spectroscopy (ISTS) and simulations based on density functional theory that the amplitude and sign of the magnetic anisotropy energy for a single Fe atom adsorbed onto the Pt(111) surface can be manip
Externí odkaz:
http://arxiv.org/abs/1309.5443
Publikováno v:
Jülich : Forschungszentrum Jülich GmbH, Zentralbibliothek, Schriften des Forschungszentrums Jülich. Reihe Schlüsseltechnologien 117, v, 204 Seiten : Illustrationen, Diagramme (2016). = Dissertation, RWTH Aachen, 2015
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich. Reihe Schlüsseltechnologien / Key Technologies 117, V, 204 S. (2016). = RWTH Aachen, Diss., 2015
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich. Reihe Schlüsseltechnologien / Key Technologies 117, V, 204 S. (2016). = RWTH Aachen, Diss., 2015
This thesis provides a theoretical description of inelastic scanning tunneling spectroscopy(ISTS), using a newly developed first-principles approach, by combining time-dependentdensity functional theory and many-body perturbation theory. The Korringa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a15df3ba0eeb96b29138b18bf721927d