Münster 1999 – scientific programme

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AM: Magnetismus

AM 16: Oberfl
ächenmagnetismus I

AM 16.8: Talk

Thursday, March 25, 1999, 12:00–12:15, F5

Electronic and magnetic properties of the Mn/Cu/c(2×2)Mn/Cu(001) multilayer system — •Frederik Schiller¹, Yves Huttel², Juan Jose Hinarejos¹, Jose Avila², Maria Carmen Asensio², and Clemens Laubschat¹ — ¹TU Dresden, FR Physik, Institut für Oberflächenphysik und Mikrostrukturphysik, 01062 Dresden — ²LURE, Bât. 209D, Université Paris-Sud, F-91405 Orsay, France

The c(2×2)Mn/Cu(001) overlayer system is a prototype of a two-dimensional (2D) magnetic alloy. ARUPS measurements and in particular the study of new surface states identified in this system and complementary LEED measurements indicate a strong surface reactivity together with a certain degree of metastability. To rule out this undesired effects we have studied the growth and magnetic properties of this system with a protective layer of Cu on top. Here we present a combined XPS, ARUPS, LEED, Photoelectron diffraction, and NEXAFS study of the c(2×2)Mn/Cu(001), the p(1×1)Cu/c(2×2)Mn/Cu(001), and the c(2×2)Mn/p(1×1)Cu/c(2×2)Mn/Cu(001) superstructure that give insight into the electronic and magnetic properties of these systems.