% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Schweflinghaus:281799, author = {Schweflinghaus, Benedikt and dos Santos Dias, Manuel and Lounis, Samir}, title = {{O}bserving spin excitations in 3 d transition-metal adatoms on {P}t(111) with inelastic scanning tunneling spectroscopy: {A} first-principles perspective}, journal = {Physical review / B}, volume = {93}, number = {3}, issn = {2469-9950}, address = {College Park, Md.}, publisher = {APS}, reportid = {FZJ-2016-01468}, pages = {035451}, year = {2016}, abstract = {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 the spin excitations of Co adatoms on Pt(111). While one group [Balashov et al., Phys. Rev. Lett. 102, 257203 (2009)] claims to have detected them, another group reported their observation only after the hydrogenation of the Co adatom [Dubout et al., Phys. Rev. Lett. 114, 106807 (2015)]. Utilizing time-dependent density functional theory in combination with many-body perturbation theory, we demonstrate that, although inelastic spin excitations are possible for Cr, Mn, Fe, and Co adatoms, their efficiency differs. While the excitation signature is less pronounced for Mn and Co adatoms, it is larger for Cr and Fe adatoms. We find that the tunneling matrix elements or the tunneling cross-section related to the nature and symmetry of the relevant electronic states are more favorable for triggering the spin excitations in Fe than in Co. An enhancement of the tunneling and of the inelastic spectra is possible by attaching hydrogen to the adatom at the appropriate position.}, cin = {IAS-1 / PGI-1 / JARA-FIT}, ddc = {530}, cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 / $I:(DE-82)080009_20140620$}, pnm = {142 - Controlling Spin-Based Phenomena (POF3-142)}, pid = {G:(DE-HGF)POF3-142}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000369220400005}, doi = {10.1103/PhysRevB.93.035451}, url = {https://juser.fz-juelich.de/record/281799}, }