TY  - JOUR
AU  - Esat, Taner
AU  - Oh, Jeongmin
AU  - Borodin, Dmitriy
AU  - Heinrich, Andreas J.
AU  - Stefan Tautz, F.
AU  - Bae, Yujeong
AU  - Temirov, Ruslan
TI  - A quantum sensor for atomic-scale electric and magnetic fields
JO  - Nature nanotechnology
VL  - 19
SN  - 1748-3387
CY  - London [u.a.]
PB  - Nature Publishing Group
M1  - FZJ-2024-05163
SP  - 1466–1471
PY  - 2024
AB  - The detection of faint magnetic fields from single-electron and nuclear spinsat the atomic scale is a long-standing challenge in physics. While currentmobile quantum sensors achieve single-electron spin sensitivity, atomicspatial resolution remains elusive for existing techniques. Here we fabricate asingle-molecule quantum sensor at the apex of the metallic tip of a scanningtunnelling microscope by attaching Fe atoms and a PTCDA (3,4,9,10-perylenetetracarboxylic-dianhydride) molecule to the tip apex. We address themolecular spin by electron spin resonance and achieve ~100 neV resolutionin energy. In a proof-of-principle experiment, we measure the magnetic andelectric dipole fields emanating from a single Fe atom and an Ag dimer on anAg(111) surface with sub-angstrom spatial resolution. Our method enablesatomic-scale quantum sensing experiments of electric and magnetic fields onconducting surfaces and may find applications in the sensing of spin-labelledbiomolecules and of spin textures in quantum materials.
LB  - PUB:(DE-HGF)16
C6  - 39054385
UR  - <Go to ISI:>//WOS:001277219200001
DO  - DOI:10.1038/s41565-024-01724-z
UR  - https://juser.fz-juelich.de/record/1029551
ER  -