GROWTH-MORPHOLOGY OF VICINAL HILLOCKS ON THE (101) FACE OF KH2PO4 - FROM STEP-FLOW TO LAYER-BY-LAYER GROWTH

Authors
DEYOREO JJ LAND TA DAIR B
Citation
Jj. Deyoreo et al., GROWTH-MORPHOLOGY OF VICINAL HILLOCKS ON THE (101) FACE OF KH2PO4 - FROM STEP-FLOW TO LAYER-BY-LAYER GROWTH, Physical review letters, 73(6), 1994, pp. 838-841
Citations number
18
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
6
Year of publication
1994
Pages
838 - 841
Database
ISI
SICI code
0031-9007(1994)73:6<838:GOVHOT>2.0.ZU;2-A
Abstract
The growth morphologies of vicinal hillocks on KH2PO4 {101} surfaces h ave been investigated using atomic force microscopy. Growth occurs on monomolecular steps both by step-flow and through layer-by-layer growt h on both dislocation induced steps and 2D nuclei. Dislocation induced hillocks exhibit hollow cores. The circular cross sections of these c ores are consistent with an isotropic step edge energy and the core ra dii are in good agreement with theoretical predictions. From the inter island spacing we estimate the surface diffusion length to be 200 to 3 00 nm at 300 K.