Sr2FeMoO6/SrTiO3/CoFe2 trilayers grown by pulsed laser deposition on SrTiO3(001) are investigated by transmission electron microscopy and electron energy loss spectroscopy. The stack is epitaxial, independent of whether the Co Fe2 electrode is grown at 500 or at 50 °C. Thus it is possible to obtain epitaxy near room temperature. The SrTi O3 Co Fe2 interface is quite sharp, while the Sr2 FeMo O6 SrTi O3 interface presents regions of Fe depletion. The chemical composition of the films is close to the nominal stoichiometries. These results could be useful for the growth of heteroepitaxial devices and magnetic tunnel junctions. © 2007 American Institute of Physics.
Nanoscale analysis of interfaces in a metal/oxide/oxide trilayer obtained by pulsed laser deposition
Bertoni G.;
2007
Abstract
Sr2FeMoO6/SrTiO3/CoFe2 trilayers grown by pulsed laser deposition on SrTiO3(001) are investigated by transmission electron microscopy and electron energy loss spectroscopy. The stack is epitaxial, independent of whether the Co Fe2 electrode is grown at 500 or at 50 °C. Thus it is possible to obtain epitaxy near room temperature. The SrTi O3 Co Fe2 interface is quite sharp, while the Sr2 FeMo O6 SrTi O3 interface presents regions of Fe depletion. The chemical composition of the films is close to the nominal stoichiometries. These results could be useful for the growth of heteroepitaxial devices and magnetic tunnel junctions. © 2007 American Institute of Physics.| File | Dimensione | Formato | |
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