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Publication Citation: Atomic-scale Observations of Alloying at the Cr-Fe(001) Interface

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Author(s): Angela Davies; Joseph A. Stroscio; Daniel T. Pierce; Robert Celotta;
Title: Atomic-scale Observations of Alloying at the Cr-Fe(001) Interface
Published: January 01, 1996
Abstract: While much progress has been made using epitaxial growth of Fe/Cr/Fe structures to study magnetic exchange coupling, a number of anomalies have arisen in studies of this model system. Using scanning tunneling microscopy and spectroscopy to investigate Cr growth on Fe(001), we have identified a potential structural cause of these anomalies. We show that Cr growth under layer-by-layer conditions on Fe(001) leads to the formation of a Cr-Fe alloy. We exploit a Cr and Fe surface state to identify single Cr impurities in Fe and evaluate the alloy concentrations with increasing Cr coverage.
Citation: Physical Review Letters
Volume: 76
Issue: 22
Pages: pp. 4175 - 4178
Research Areas: Scanning tunneling microscopy (STM)
PDF version: PDF Document Click here to retrieve PDF version of paper (565KB)