All Physics Faculty Publications

Title

Influences of Thermal Spikes in Ion Beam Mixing

Document Type

Article

Journal/Book Title/Conference

Nuclear Instruments and Methods in Physics Research B

Volume

7/8

Issue

2

Publication Date

3-1985

First Page

561

Last Page

565

DOI

10.1016/0168-583X(85)90433-1

Abstract

Guided by the results of molecular dynamics simulations, we develop a thermal spike model for the relaxation of collision cascades in which the hot zone has mobile, reacting defects and cools by thermal diffusion. Marker atoms within such spikes are taken to migrate by radiation enhanced diffusion which is governed by the locally transient temperatures and defect concentrations. The atomic mixing associated with such motions is examined, on the basis of the model, for a variety of ion-target systems. The dependences of spike mixing on diffusion mechanism, irradiation ion and energy, and sample temperature are discussed.

Comments

Published by Elsevier in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. Publisher PDF is available through link above. Publisher requires a subscription to access article.

http://www.sciencedirect.com/science/article/pii/0168583X85904331