Sensing the Spin of an Individual Ce Adatom
- 주제(기타) Physics, Multidisciplinary
- 설명문(일반) [Ternes, Markus] Rhein Westfal TH Aachen, Inst Phys, D-52074 Aachen, Germany; [Ternes, Markus] Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany; [Lutz, Christopher P.] IBM Almaden Res Ctr, San Jose, CA 95120 USA; [Heinrich, Andreas J.] Inst for Basic Sci Korea, Ctr Quantum Nanosci, Seoul 03760, South Korea; [Heinrich, Andreas J.] Ewha Womans Univ, Phys Dept, Seoul 03760, South Korea; [Schneider, Wolf-Dieter] Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland; [Schneider, Wolf-Dieter] Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted
- 발행기관 AMER PHYSICAL SOC
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000168726
- 본문언어 영어
- Published As https://dx.doi.org/10.1103/PhysRevLett.124.167202
- PubMed https://pubmed.ncbi.nlm.nih.gov/32383899
초록/요약
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.
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