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Article Dans Une Revue Applied Surface Science Année : 2000

Anion effect in Co/Au(111) electrodeposition: structure and magnetic behavior

Résumé

In-situ scanning tunneling microscopy (STM) and in-situ alternating gradient field magnetometry (AGFM) are used in combination to characterize the structure and magnetic behavior of Co/Au(111) layers electrodeposited from CoSO 4 solutions, with anions X=Cl - and SCN - added in amount traces. In the Cl - solution, the 2-D growth process is briefly recalled. In the thiocyanate (SCN -) solution, preliminary observations show that nanometer clusters accumulate on top of a Co underpotential deposition (UPD) monolayer. Both structures solution/Co/Au(111) exhibit perpendicular magnetic anisotropy (PMA) for a Co thickness t≤ t*, with t*˜2 ML in the Cl - solution and ˜4-5 ML in the SCN - one. Results are briefly discussed in light of classical models for PMA in ultrathin films.

Dates et versions

hal-00999467 , version 1 (03-06-2014)

Identifiants

Citer

L. Cagnon, A. Gundel, T. Devolder, A. Morrone, C. Chappert, et al.. Anion effect in Co/Au(111) electrodeposition: structure and magnetic behavior. Applied Surface Science, 2000, 164, pp.22-28. ⟨10.1016/S0169-4332(00)00330-5⟩. ⟨hal-00999467⟩
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