Abstract
Thin films consisting of alloys of immiscible metals display a unique form of compositional ordering not observed in the bulk. Utilizing scanning tunneling microscopy and low energy electron diffraction, we have examined thin films of and grown on Mo(110) surfaces. Both of these systems are observed to form a compositionally ordered alloy of alternating, contiguous stripes of Co (or Fe) and Ag with the long axis of the stripe coinciding with the Mo[001] direction in the plane of the substrate. The average stripe periodicities are on the order of 2.0 to 2.5 nm along the (perpendicular to the stripes) direction depending on film stoichiometry.
- Received 11 March 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.1897
©1998 American Physical Society