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Publication Citation: Coarsening of Unstable Surface Features During Fe(001) Homoepitaxy

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Author(s): Joseph A. Stroscio; Daniel T. Pierce; Mark D. Stiles; A Zangwill; L Sander;
Title: Coarsening of Unstable Surface Features During Fe(001) Homoepitaxy
Published: January 01, 1995
Abstract: The evolution of the surface profile during homoepitaxial growth of Fe(001) is studied by scanning tunnelling microscopy and reflection high energy electron diffraction. The observed morphology exhibits a non-self affine collection of mound-like features that maintain their shape but coarsen as growth proceeds. The characteristic feature separation L is set in the submonolayer regime and increases with thickness, t, as L ~ t 0.16 {plus or minus} 0.04. During the coarsening phase, the mounds are characterized by a magic slope and a lack of reflection symmetry. These observations are shown to be described by a continuum growth equation without capillarity.
Citation: Physical Review Letters
Volume: 75
Issue: 23
Pages: pp. 4246 - 4246
Research Areas: Scanning tunneling microscopy (STM)
PDF version: PDF Document Click here to retrieve PDF version of paper (318KB)