EFFECT OF Bi SURFACTANT IN THE HETEROEPITAXIAL GROWTH OF Co ON Cu SURFACES

Autor: MASAO KAMIKO, HIROAKI CHIHAYA, WATARU SUGIMOTO, RYOICHI YAMAMOTO, SANGMUN OH, JUNHUA XU, ISAO KOJIMA
Rok vydání: 2006
Předmět:
Zdroj: Surface Review and Letters. 13(02):201-207
Popis: We have investigated the effect of Bi on the heteroepitaxial growth of Co on Cu by reflection high-energy electron diffraction (RHEED) measurements. It was found that Bi enhanced the layer-by-layer growth of Co on the Cu(111) surfaces at 100°C. The dependence of the growth on Bi layer thickness suggested that there existed a suitable amount of Bi surfactant layer that enhanced smoother layered growth. On the contrary, for the case of Co growth on Cu(100), Bi depressed the layer-by-layer growth of Co on Cu(100). The surface segregation effect of Bi was also studied by Auger electron spectroscopy (AES).
Databáze: OpenAIRE