Back to Search
Start Over
Tunneling electron induced rotation of a copper phthalocyanine molecule on Cu(111)
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2013
- Publisher :
- arXiv, 2013.
-
Abstract
- The rates of a hindered molecular rotation induced by tunneling electrons are evaluated using scattering theory within the sudden approximation. Our approach explains the excitation of copper phthalocyanine molecules (CuPc) on Cu(111) as revealed in a recent measurement of telegraph noise in a scanning tunneling microscopy experiment. A complete explanation of the experimental data is performed by computing the geometry of the adsorbed system, its electronic structure, and the energy transfer between tunneling electrons and the molecule's rotational degree of freedom. The results unambiguously show that tunneling electrons induce a frustrated rotation of the molecule. In addition, the theory determines the spatial distribution of the frustrated rotation excitation, confirming the striking dominance of two out of four molecular lobes in the observed excitation process. This lobe selectivity is attributed to the different hybridizations with the underlying substrate. © 2013 American Physical Society.<br />J.S., A.S., C.A.B., and R.M. gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft through the SFB616 ‘Energy Dissipation at Surfaces.’ N.L. is supported by the ICT-FET Integrated Project AtMol (http://www.atmol.eu). M.C.C. thanks the Studienstiftung desdeutschen Volkes.
- Subjects :
- Materials science
FOS: Physical sciences
02 engineering and technology
Electronic structure
Electron
Rotation
7. Clean energy
01 natural sciences
law.invention
law
0103 physical sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Molecule
010306 general physics
Quantum tunnelling
Condensed Matter - Materials Science
Condensed Matter - Mesoscale and Nanoscale Physics
Materials Science (cond-mat.mtrl-sci)
Physik (inkl. Astronomie)
021001 nanoscience & nanotechnology
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Scattering theory
Scanning tunneling microscope
Atomic physics
0210 nano-technology
Excitation
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....89a4a1e4b0586abdc19638ec232e07f1
- Full Text :
- https://doi.org/10.48550/arxiv.1304.2471