ISSN:
1572-879X
Keywords:
small Co particles
;
photoemission
;
DOS
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Small Co particles were prepared by sputter etching of a 4–5 nm thick “island-like” Co film deposited on Si(111) substrate. The density of states (DOS) of the valence band was measured by means of ultraviolet photoemission (UPS) during the sputter etching to monitor the formation of small Co particles. It was found that at a given thickness of the Co island the Fermi level was shifted by 1.8-1.9 eV toward higher binding energy and theDOS decreased or no states were detectable at the Fermi level. This effect was explained by the formation of small Co particles with electronic structure which is significantly different from that of the bulk Co.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00810612
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