Observations of alloying in the growth of Cr on Fe(001)
نویسندگان
چکیده
Using scanning tunneling microscopy, we observe the alloying of Cr with an Fe(001) substrate for various coverages at two temperatures. At low Cr coverage, the alloy consists of individual Cr impurities surrounded by Fe. Elemental identification is possible using surface states observed via tunneling spectroscopy. The alloy may be the cause of several magnetic anomalies observed in Cr/Fe structures.
منابع مشابه
Atomic-scale observations of alloying at the Cr-Fe(001) interface.
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 ...
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