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Phys. Rev. A 58, 2191–2195 (1998)

Multiple scattering effects on stopping power of large clusters in solids

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Z. L. Mišković*, W.-K. Liu, and You-Nian Wang
Department of Physics, Guelph-Waterloo Program for Graduate Work in Physics (GWP)2, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

Received 21 April 1998; published in the issue dated September 1998

We study the effects on the electronic stopping power of large clusters in solids, resulting from multiple elastic scattering of each particle in the cluster by the target atoms, in the small-angle approximation. Evaluation of the cluster vicinage self-energy at the entrance of the target shows that large clusters may stabilize against the Coulomb explosion for a range of cluster sizes and speeds, so that the change of the cluster structure, due to multiple scattering, may have a noticeable influence on the vicinage, or interference, energy losses of clusters due to collective electronic excitations in the target. Stopping power calculations are presented for C60 and (H2)50 clusters in an Al target, together with the results on stabilization conditions against the Coulomb explosion for (H2)Nm, based on self-energy considerations.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.58.2191
DOI:
10.1103/PhysRevA.58.2191
PACS:
34.50.Bw, 36.40.-c, 61.46.+w, 61.85.+p

*On leave from The Institute of Nuclear Sciences, Vinča, Belgrade, Yugoslavia. Also at Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.

Permanent address: Department of Physics, Dalian University of Technology, Dalian 116023, People’s Republic of China.