TY  - JOUR
AU  - Ternes, Markus
AU  - Lutz, Christopher P.
AU  - Heinrich, Andreas J.
AU  - Schneider, Wolf-Dieter
TI  - Sensing the Spin of an Individual Ce Adatom
JO  - Physical review letters
VL  - 124
IS  - 16
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2020-01865
SP  - 167202
PY  - 2020
AB  - The magnetic moment of rare earth elements originates from electrons in the partially filled 4f orbitals. Accessing this moment electrically by scanning tunneling spectroscopy is hampered by shielding of outerlying orbitals. Here, we show that we can detect the magnetic moment of an individual Ce atom adsorbed on a Cu2N ultrathin film on Cu(100) by using a sensor tip that has its apex functionalized with a Kondo screened spin system. We calibrate the sensor tip by deliberately coupling it to a well characterized Fe atom. Subsequently, we use the splitting of the tip’s Kondo resonance when approaching a spectroscopically dark Ce atom to sense its magnetic moment.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000527527300013
DO  - DOI:10.1103/PhysRevLett.124.167202
UR  - https://juser.fz-juelich.de/record/875195
ER  -