Title

Non-classical nucleation and collective diffusion in epitaxially grown ultrathin films

Publication Date

6-21-2019

Department

Ames Laboratory; Chemistry; Physics and Astronomy

Campus Units

Chemistry, Physics and Astronomy, Ames Laboratory

OSTI ID+

1556106

Report Number

IS-J 9984

DOI

10.1016/j.jcrysgro.2019.06.023

Journal Title

Journal of Crystal Growth

Volume Number

523

First Page

125137

Abstract

Nucleation phenomena are very important in nature because they control the formation of novel phases which can have technologically important properties and applications. LEEM experiments in real time are described for island nucleation in Pb/Si(1 1 1), that show unusually fast, defect-free large Pb islands. The experiments confirm that this growth is due to the collective motion of the wetting layer and provide real time information about the rate of mass transport. Review of other experimental systems where similar unusually fast nucleation processes are present can lead to a better understanding of these intriguing processes, so predictability of the growth conditions (temperature, flux rate, coverage) can be attained.

DOE Contract Number(s)

AC02-07CH11358; 2016/21/B/ST3/01294

Language

en

Department of Energy Subject Categories

36 MATERIALS SCIENCE

Publisher

Iowa State University Digital Repository, Ames IA (United States)

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