%0 Journal Article
%A Azpiroz, Julen Ibanez
%A dos Santos Dias, Manuel
%A Schweflinghaus, Benedikt
%A Blügel, Stefan
%A Lounis, Samir
%T Tuning Paramagnetic Spin Excitations of Single Adatoms
%J Physical review letters
%V 119
%N 1
%@ 1079-7114
%C College Park, Md.
%I APS
%M FZJ-2017-05773
%P 017203
%D 2017
%X We predict the existence of paramagnetic spin excitations (PSE) in nonmagnetic single adatoms. Our calculations demonstrate that PSE develop a well-defined structure in the meV region when the adatom’s Stoner criterion for magnetism is close to the critical point. We further reveal a subtle tunability and enhancement of PSE by external magnetic fields. Finally, we show how PSE can be detected as moving steps in the dI/dV signal of inelastic scanning tunneling spectroscopy, opening a potential route for experimentally accessing electronic properties of nonmagnetic adatoms, such as the Stoner parameter.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000405012100012
%$ pmid:28731747
%R 10.1103/PhysRevLett.119.017203
%U https://juser.fz-juelich.de/record/836714