SCANNING-TUNNELING-MICROSCOPY STUDY OF THE GROWTH OF COBALT ON CU(111)

Citation
J. Delafiguera et al., SCANNING-TUNNELING-MICROSCOPY STUDY OF THE GROWTH OF COBALT ON CU(111), Physical review. B, Condensed matter, 47(19), 1993, pp. 13043-13046
Citations number
27
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
47
Issue
19
Year of publication
1993
Pages
13043 - 13046
Database
ISI
SICI code
0163-1829(1993)47:19<13043:SSOTGO>2.0.ZU;2-I
Abstract
Cobalt grows initially on Cu(111) in the form of bilayer islands with the shape of triangles of alternate orientation. This is probably rela ted to the initial stacking sequence of the Co layers. The islands do not coalesce upon further deposition and the resulting film, although epitaxial and crystalline to the extent tested by diffraction techniqu es, is, actually, granular. Thus, microscopic evidence is provided for the existence of an intrinsic defect, namely, twinned fcc crystallite s and their associated grain boundaries, which may be the much sought cause of discrepancy on antiferromagnetic coupling data in Co/Cu(111) superlattices grown in ultrahigh vacuum.