Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 Jul 10;115(2):026101.
doi: 10.1103/PhysRevLett.115.026101. Epub 2015 Jul 6.

Scanning Quantum Dot Microscopy

Christian Wagner  1   2 , Matthew F B Green  1   2 , Philipp Leinen  1   2 , Thorsten Deilmann  3 , Peter Krüger  3 , Michael Rohlfing  3 , Ruslan Temirov  1   2 , F Stefan Tautz  1   2
Affiliations
Free article

Scanning Quantum Dot Microscopy

Christian Wagner et al. Phys Rev Lett. .
Free article

Abstract

We introduce a scanning probe technique that enables three-dimensional imaging of local electrostatic potential fields with subnanometer resolution. Registering single electron charging events of a molecular quantum dot attached to the tip of an atomic force microscope operated at 5 K, equipped with a qPlus tuning fork, we image the quadrupole field of a single molecule. To demonstrate quantitative measurements, we investigate the dipole field of a single metal adatom adsorbed on a metal surface. We show that because of its high sensitivity the technique can probe electrostatic potentials at large distances from their sources, which should allow for the imaging of samples with increased surface roughness.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

LinkOut - more resources