Regensburg 2019 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 35: HL Poster II
HL 35.24: Poster
Mittwoch, 3. April 2019, 17:30–20:00, Poster E
Investigation of optical properties for Fe3+ in ZnO — •Martin Mangold1, Raphael Müller1, Florian Huber1, Benjamin Neuschl1, Ulrich Herr2, and Klaus Thonke1 — 1Institute of Quantum Matter, Semiconductor Physics Group, University Ulm, Germany — 2Institute for Functional Nanosystems, University Ulm, Germany
Ferromagnetism in II-VI-semiconductors like ZnO, due to doping with transition metals, rose attention over the last years. A candidate for realization are iron impurities which can be incorporated in high concentrations. In this study high-quality crystalline wurtzite ZnO layers grown by a CVD-based method were used as a host crystal for the investigation of internal spin-forbidden electric-dipole transitions of Fe3+. Therefore iron was incorporated by a seed growth technique using iron(II) acetate. High-resolution, low-temperature Photoluminescence and magneto-optical photoluminescence investigations on the iron atom and its optical band at 1.78 eV are presented. This band emerges for a transition from the excited state 4T1(G) to the ground state 6A1(S).