Van der Waals forces between metal microclusters and fullerenes

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.R4293· OSTI ID:7116634

Scheidemann, A A; Kresin, V V; Knight, W D ^[1]

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1. Department of Chemistry, University of Washington, Seattle, Washington 98195 (United States) Department of Physics, University of California, Berkeley, California 94720 (United States) Lawrence Livermore National Laboratory, University of California, Livermore, California 94550 (United States)

Absolute integral cross sections for low-energy scattering of neutral sodium clusters Na[sub [ital n]] (2[lt][ital n][lt]20) by C[sub 60] fullerenes have been measured. Cluster-cluster interaction is dominated by long-range van der Waals forces. Interaction constants determined from the data are in good agreement with the prediction of dispersion theory based on the spectral properties. The large cluster polarizabilities are responsible for the high strength of the interaction potential and, consequently, for the large center-of-mass cross sections ([approx gt]5000 A[sup 2] for Na[sub 20-]C[sub 60] collisions).

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7116634
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
CARBON
COLLISIONS
CROSS SECTIONS
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY DEPENDENCE
FULLERENES
INTEGRAL CROSS SECTIONS
METALS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NONMETALS
PHYSICAL PROPERTIES
POLARIZABILITY
SCATTERING
SODIUM
VAN DER WAALS FORCES