6533b7d5fe1ef96bd1264f92

RESEARCH PRODUCT

Spin-Polarized Scanning Tunnelling Microscopy of Ultrathin Films

J. ProkopA. KukuninHans-joachim Elmers

subject

Materials scienceAnnealing (metallurgy)AlloyAnalytical chemistryNanowireGeneral Physics and Astronomyengineering.materiallaw.inventionHomogeneouslawMicroscopyengineeringScanning tunneling microscopeSingle crystalQuantum tunnelling

description

Using low temperature spin-polarized scanning tunneling microscopy we have studied the morphology and magnetic properties of ultrathin Fe(0.5 ML)Au(0.5 ML) nanowires prepared on a Mo(110) single crystal. The Fe nanostripes grown by step flow on a Mo(110) at 700 K were covered by Au at RT, and subsequently annealed at 700 K. Differences in the morphology of Au on Fe(110)/Mo(110) and clean Mo(110) surfaces are observed and discussed. After annealing, the Mo is covered by a homogeneous FeAu ML alloy with several iron enriched islands which reveal an out-of-plane magnetic contrast. Direct lateral exchange coupling has been observed for these islands.

https://doi.org/10.12693/aphyspola.109.371