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APS » Journals » Phys. Rev. A » Volume 69 » Issue 3
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Phys. Rev. A 69, 031201(R) (2004) [4 pages]

Variable surface composition and radial interface formation in self-assembled free, mixed Ar∕Xe clusters

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M. Tchaplyguine1,2, M. Lundwall2, M. Gisselbrecht1, G. Öhrwall2, R. Feifel2,*, S. Sorensen3, S. Svensson2, N. Mårtensson1,2, and O. Björneholm2
1MAX-laboratory, Lund University, Box 118, SE-221 00 Lund, Sweden
2Department of Physics, Uppsala University, Box 530, SE-751 21 Uppsala, Sweden
3Department of Synchrotron Radiation Research, Institute of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden

Received 14 July 2003; published 18 March 2004

Using photoelectron spectroscopy, we demonstrate how the self-assembling process of cluster formation in an adiabatic expansion leads to radial segregation and layering as well as to variable surface composition for binary Ar∕Xe clusters. The radial structuring can be qualitatively understood from the different interatomic bonding strengths of the two components.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.031201
DOI:
10.1103/PhysRevA.69.031201
PACS:
36.40.Mr, 33.60.−q, 61.46.+w

*Present address: Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom.

 
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