Magnetic properties of ultrathin Co / Ag / Ge ( 1 1 1 ) films studied using surface magneto - optic Kerr effect technique
نویسندگان
چکیده
Co/Ag/Ge (1 1 1) films show an in-plane anisotropy as deposited at 200K. The ferromagnetic inactive layers, formed due to the intermixing of Co and Ge, can be efficiently reduced to zero thickness by introducing 6 monolayer (ML) Ag as a buffer layer. For Co/3ML Ag/Ge (1 1 1) films, the amount of Ag is not enough to separate Co and the Ge substrate. This results in the formation of a 2-monolayer-thick nonferromagnetic Co–Ge compound layer and a rough interface of the Co layer. r 2004 Elsevier B.V. All rights reserved. PACS: 75.70.Ak; 78.20.Ls; 68.35.Ct
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