Structure and magnetism of Co ultrathin films grown on Pd/Cu(100) monolayer

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Abstract
We have grown epitaxial Co films on a single monolayer of Pd on Cu(100) substrate at room temperature. The interlayer of Pd was grown by pulsed laser deposition, whereas the Co layer was prepared by thermal deposition. A layer-by-layer growth mode continues until at least 11 ML Co layers in comparison to 4 ML on Pd(100)substrate, which is due to a reduced lattice mismatch between Co and the Pd/Cu(100) substrate in comparison to the Co on Pd(100) system. Compared to Co films on Pd(100), a larger slope of the thickness dependence of longitudinal magneto-o ptical Kerr rotation has been found in the Co/Pd/Cu(100) films with thickness ab ove 2 ML. We have also found an increase of longitudinal magneto-optical Kerr ro tation for Co/Pd/Cu(100) in comparison to Co/Cu(100) system which may be attribu ted to the Co/Pd interface effect.

Keywords:
magnetic properties of films /

structure and morphology /

interfacial magnetic properties
Authors and contacts
Lu Ya-Feng³,

Przybylski M.¹,

Wang Wen-Hong¹,

Yan Long¹,

Shi Yi-Sheng¹,

Barthel J.²

(1)Max Planck Institute for Microstructure Physics,Weinberg 2,D-06120 Halle,G ermany; (2)Max Planck Institute for Microstructure Physics,Weinberg 2,D-06120 Halle,Germany; (3)西北有色金属研究院，西安 710016;Max Planck Institute for Microstructure Physics,Weinberg 2,D-06120 Halle,G ermany
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