Do We Understand Magnetic Properties of ZnMnO?
M. Godlewski a,b, A. Wójcik a, K. Kopalko a, V.Yu. Ivanov a, Z. Wilamowski a, R. Jakieła a, E. Guziewicz a, A. Szczepanik a, P. Dłużewski a, E. Chikoidze c, J. Barjon c, Y. Dumont c, M. Putkonend , L. Niinistöd and D. Tang e
a Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
b Dept. Mathematics and Natural Sciences, College of Science, Cardinal S. Wyszyński University, Warsaw, Poland
c Groupe d'Etudes de la Matière Condensée, CNRS-Université de Versailles, 45 avenue des Etats-Unis, 78035 Versailles, France
d Laboratory of Inorganic and Analytical Chemistry, Helsinki University of Technology, P.O. Box 6100, 02015 Espoo, Finland
e FEI Co, 5600 MD Eindhoven, Netherlands
Full Text PDF
Received: 9 06 2007;
Optical and magnetic properties of ZnMnO films are discussed based on the results of cathodoluminescence, photoluminescence, and magneto-photoluminescence investigations. We show that photoluminescence/cathodoluminescence emissions are strongly quenched and become in-plane inhomogeneous in samples with increased Mn fractions. Strong polarization of photoluminescence is observed, even though excitonic lines do not shift and are not split at magnetic fields up to 6 T.
DOI: 10.12693/APhysPolA.112.261
PACS numbers: 81.15.Gh, 75.75.+a, 78.30.Fs, 78.60.Hk