TY - JOUR
T1 - Sensing the Spin of an Individual Ce Adatom
AU - Ternes, Markus
AU - Lutz, Christopher P.
AU - Heinrich, Andreas J.
AU - Schneider, Wolf Dieter
N1 - Publisher Copyright:
© 2020 American Physical Society. © 2020 American Physical Society.
PY - 2020/4/24
Y1 - 2020/4/24
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=85084721159&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.167202
DO - 10.1103/PhysRevLett.124.167202
M3 - Article
C2 - 32383899
AN - SCOPUS:85084721159
SN - 0031-9007
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
M1 - 167202
ER -