Probing Charges on the Atomic Scale by Means of Atomic Force Microscopy

Physical Review Letters
F AlbrechtP Jelínek

Abstract

Kelvin probe force spectroscopy was used to characterize the charge distribution of individual molecules with polar bonds. Whereas this technique represents the charge distribution with moderate resolution for large tip-molecule separations, it fails for short distances. Here, we introduce a novel local force spectroscopy technique which allows one to better disentangle electrostatic from other contributions in the force signal. It enables one to obtain charge-related maps at even closer tip-sample distances, where the lateral resolution is further enhanced. This enhanced resolution allows one to resolve contrast variations along individual polar bonds.

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Citations

Feb 4, 2016·Nano Letters·Michael EllnerRubén Peréz
Feb 28, 2018·Angewandte Chemie·Leo GrossGerhard Meyer
Jul 28, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Pavel Jelínek
Aug 12, 2018·Nature Communications·Cornelius KrullAgustin Schiffrin
Feb 26, 2019·Beilstein Journal of Nanotechnology·Taras ChutoraMartin Švec
Jul 3, 2018·Science Advances·Joonhee LeeV Ara Apkarian
Jun 1, 2016·Nanotechnology·Martin OndráčekPavel Jelínek
Jun 27, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Christian Wagner, F Stefan Tautz
Sep 28, 2017·Physical Review Letters·Ping YuAndrea Donarini
Mar 7, 2016·Optics Express·Kazuhiko KamitaniShinji Urabe
Aug 8, 2018·Physical Review Letters·M WollochM C Righi
Jun 12, 2019·Nature Materials·Christian WagnerF Stefan Tautz
Jun 27, 2019·Nanoscale·Fabian QueckJascha Repp
Jun 12, 2021·Physical Review Letters·M OmidianJ Kröger
Aug 17, 2018·Nano Letters·Xuelei SuPing Yu

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