Berlin 2008 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 51: Poster IV
HL 51.49: Poster
Donnerstag, 28. Februar 2008, 16:30–19:00, Poster D
Magneto-optical properties of ZnO with Mn ion-beam implantation — Limei Chen1, Samer Al-Azzaui1, •Wolfram Heimbrodt1, Daniel Stichenoth2, Sven Müller2, and Carsten Ronning2 — 1Department of Physics, Philipps Universtiy of Marburg, Renthof 5, 35032 Marburg — 2II. Institute of Physics, Georg-Augusta University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen
We studied optical and magneto-optical properties of a series of (Zn,Mn)O samples with various Mn contents. The samples were prepared by ion-beam implantation with 55Mn into ZnO substrates. Multiple ion energies ranging from 20 to 450 keV were used in order to create a box-like homogeneous distribution of the implanted ions. By choosing different ion fluencies, samples with Mn concentrations from 0.1 % to 4 % were obtained. Post-implantation annealing procedures were performed at different temperatures and various lengths of time to remove the implantation-introduced damage and to reduce the Mn killer center density. The evolution of optical and magneto-optical properties as a function of Mn concentration and the effect of annealing process were studied in order to obtain better understanding of Mn incorperation into ZnO.