Regensburg 2007 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 3: Metal Layers and Multilayers

DS 3.4: Vortrag

Montag, 26. März 2007, 10:15–10:30, H34

Self-organization of multilayers during the co-deposition of — •Dominika Lyzwa¹, Hayo Zutz¹, Inga Gerhards¹, Carsten Ronning¹, Hans Hofsäss¹, Michael Seibt², Wan-Yu Wu³, and Jyh-Ming Ting³ — ¹2.Physikalisches Institut, Universität Göttingen, Friedrich-Hund-Platz 1,37077 Göttingen — ²4.Physikalisches Institut, Universität Göttingen, Friedrich-Hund-Platz 1,37077 Göttingen — ³Department of Materials Science and Engineering, National Cheng Kung University,Tainan,Taiwan,ROC

Multilayers grown by simultaneously deposition of carbon and Fe, Au, Cu or Ni ions reveal a self-organization process with alternately metal-rich and metal-deficient layers. These layers are of the size of a few nanometers. The metal-rich layers consist of crystalline clusters while the metal-deficient ones of amorphous carbon. Concentration distributions were analyzed by Rutherford backscattering (RBS) measurements while the structure induced by the ions was examined via transmission electron microscopy (TEM). A model of the multilayer formation can be described by an interplay of sputtering, surface segregation, ion induced diffusion, and the stability of small clusters against ion bombardment. First investigations on the optical and magnetic properties of such multilayers will be presented.