TY  - JOUR
AU  - Azpiroz, Julen Ibanez
AU  - dos Santos Dias, Manuel
AU  - Schweflinghaus, Benedikt
AU  - Blügel, Stefan
AU  - Lounis, Samir
TI  - Tuning Paramagnetic Spin Excitations of Single Adatoms
JO  - Physical review letters
VL  - 119
IS  - 1
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2017-05773
SP  - 017203
PY  - 2017
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000405012100012
C6  - pmid:28731747
DO  - DOI:10.1103/PhysRevLett.119.017203
UR  - https://juser.fz-juelich.de/record/836714
ER  -