Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Measurements of Molecular Dynamics in Atomically Engineered Molecular Nanostructures

Published

Author(s)

Joseph A. Stroscio, Robert Celotta

Abstract

The quantum yield for exciting the motion of a single atom within a molecular nanostructure was measured with atomic spatial resolution. The molecular nanostructures consisted of a series of CoCun and CoCunCo linear molecules fabricated on a Cu(111) surface. The Co atoms at the end of the molecules were induced to switch between two lattice positions using electron excitation in a scanning tunneling microscope (STM). The electron excitation and quantum yield were found to be spatially localized on an atomic scale. Above an electron energy threshold, the Co atom motion resulted from a predominantly single electron process. By systematically varying the molecular structure, atom motion within the molecule was shown to be dependent on molecular length and composition.
Proceedings Title
Proceedings of the MAR06 Meeting of The American Physical Society
Conference Dates
March 13-17, 2006
Conference Location
Baltimore, MD
Conference Title
MAR06 Meeting of The American Physical Society

Citation

Stroscio, J. and Celotta, R. (2006), Measurements of Molecular Dynamics in Atomically Engineered Molecular Nanostructures, Proceedings of the MAR06 Meeting of The American Physical Society, Baltimore, MD (Accessed April 15, 2024)
Created March 15, 2006, Updated February 19, 2017