Machine simulation of collisions between a copper atom and a copper lattice

Loading...
Thumbnail Image
Authors
Gay, Warren L.
Harrison, Don E. Jr.
Subjects
Advisors
Date of Issue
1964-09-14
Date
Publisher
Language
Abstract
We have examined a number of collision events in which the target atom is embedded in a crystal lattice. The fcc <100>, <110>, and <111> orientations were examined in detail for the energy range from 25 eV to 10 keV. Preliminary results for the bcc <100> lattice are included. Lattice effects are somewhat smaller than one might anticipate. Orientation effects are significant because the relative atomic separations vary considerably between different orientations. The general features of our results are insensitive to the form of interaction potential, but magnitudes vary considerably. For the Gibson No. 2 parameters in a Born-Mayer potential, lattice effects lose significance around 5-keV bombardment energy; for the Gibson No. 1 they persist to at least 10 keV. No "effective mass" behavior was detectable. Binary-collision theories are not valid for energies below a few hundred eV.
Type
Article
Description
Series/Report No
Department
Physics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Work was supported by the U,S, Office of Naval Research
Funder
Format
11 p.
Citation
Physical Review, v. 135, no. 6A, September 14, 1964, pp. A1780-A1790
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Collections