Journal Article

FZJ-2024-05163

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A quantum sensor for atomic-scale electric and magnetic fields

Esat, T. (Corresponding author)FZJ* ; Oh, J.FZJ* ; Borodin, D. ; Heinrich, A. J. (Corresponding author)Extern* ; Stefan Tautz, F.FZJ* ; Bae, Y. (Corresponding author) ; Temirov, R. (Last author)FZJ*

2024
Nature Publishing Group London [u.a.]

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Please use a persistent id in citations: doi:10.1038/s41565-024-01724-z  doi:10.34734/FZJ-2024-05163

Abstract: 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.

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Contributing Institute(s):

1. Quantum Nanoscience (PGI-3)

Research Program(s):

1. 5213 - Quantum Nanoscience (POF4-521) (POF4-521)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Nature ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 30 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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