ODMR study of ZnO single crystals containing iron impurity ions

15th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Gurin, A.S.^1 ; Romanov, N.G.^1 ; Tolmachev, D.O.^1 ; Baranov, P.G.^1 ; Morhain, C.^2

A. F. Ioffe Physical-Technical Institute, RAS, 194021 St.-Petersburg, Russia^1

CRHEA-CNRS, Rue Bernard Grégory, F-06560 Valbonne, France^2

关键词: Band excitations;    Donor-acceptor pairs;    Impurity ions;    Iron impurities;    Lattice sites;    Optically detected magnetic resonance;    Shallow donors;    ZnO single crystals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/461/1/012032/pdf
DOI  :  10.1088/1742-6596/461/1/012032

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Optically detected magnetic resonance (ODMR) was studied in ZnO single crystals containing iron impurity ions. ODMR spectra of the ground state of isolated Fe3+on the Zn2+lattice sites were obtained by monitoring the intensity of the intra-centre Fe3+luminescence together with the ODMR signals of shallow donors. The latter observation suggests that the Fe3+luminescence may actually be excited due to energy transfer from the recombining donor-acceptor pairs to the impurity ions. This conclusion is supported by the presence of Fe3+emission in the afterglow spectra recorded after switching off band-to band excitation light.