All Physics Faculty Publications

Document Type

Article

Journal/Book Title/Conference

Physical Review B

Volume

40

Issue

7

Publisher

American Physical Society

Publication Date

9-1-1989

First Page

4271

Last Page

4277

DOI

10.1103/PhysRevB.40.4271

Abstract

The layer-by-layer growth of solid argon films on graphite at T=10 K is studied using elastic neutron diffraction. The growth is characterized by individual layers with commensurate in-plane lattice constants. As the coverage is increased beyond two layers, evidence of the coexistence of ABC and ABA stacking is apparent, with the ABC sequence dominating as the film thickens. A continuous decrease in the Debye-Waller factor also occurs as the film thickness grows, indicating a crossover from two-dimensional to three-dimensional behavior. As the coverage is increased beyond about four nominal layers, there is evidence of bulk crystallite formation. The diffraction results are compared with equivalent measurements for methane films and with the recent computer simulations of Hruska and Phillips.

Comments

http://link.aps.org/doi/10.1103/PhysRevB.40.4271

Published by the American Physical Society in Physical Review B. Publisher PDF is available for download through the link above.

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