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Phys. Rev. Lett. 87, 013002 (2001) [4 pages]

Photoelectron Diffraction Mapping: Molecules Illuminated from Within

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A. Landers1,*, Th. Weber2, I. Ali3, A. Cassimi4, M. Hattass2, O. Jagutzki2, A. Nauert2, T. Osipov3, A. Staudte2,5, M. H. Prior5, H. Schmidt-Böcking2, C. L. Cocke3, and R. Dörner6
1Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008
2Institut für Kernphysik, University of Frankfurt, August-Euler Strasse 6, D-60486 Frankfurt, Germany
3Department of Physics, Kansas State University, Cardwell Hall, Manhattan, Kansas 66506
4CIRIL/CEA/CNRS/ISMRA, Université de Caen, Box 5133, F-14070 Caen Cedex 5, France
5Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
6Fakultät für Physik, University of Freiburg, Hermann Herderstrasse 3, D-79104 Freiburg, Germany

Received 17 January 2001; published 18 June 2001

We demonstrate the use of a multiparticle coincidence technique to image the diffraction of an electron wave whose source is placed at a specific site in a free molecule. Core-level photoelectrons are used to illuminate the molecule from within. By measuring the vector momenta of two molecular fragments and the photoelectron, a richly structured electron diffraction pattern is obtained in a body-fixed frame of the randomly oriented molecule in the gas phase. We illustrate this technique for CO, creating a photoelectron from the C(1s) shell and scanning its energy from zero to 30 eV.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.013002
DOI:
10.1103/PhysRevLett.87.013002
PACS:
33.80.Eh, 33.90.+h

*Electronic address: allen.landers@wmich.edu

 
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