Schmitt, H. ; Ghafari, M. ; Kruk, R. ; Ellrich, J. ; Hütten, A. ; Schmitt, L. A. ; Hahn, H. (2006)
Interfacial microstructure of Fe∕AlO[sub x]∕Fe magnetic tunnel junctions in high resolution.
In: Applied Physics Letters, 88 (12)
doi: 10.1063/1.2186991
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Magnetic tunnel junctions were prepared by deposition of a Ta-buffered Fe-AlOx-Fe trilayer on a thermally oxidized silicon wafer. In order to investigate the influence of different Fe oxides like a spinel-like phase and a spinel (Hycernite) on the tunneling magnetoresistance effect, a 57Fe tracer was deposited at the lower barrier interface. Using conversion electron Mössbauer spectroscopy the evolution of chemical, structural, and magnetic changes in the tracer was monitored starting from the as-prepared state and after several annealing steps. The nuclear probe technique enables to resolve phase formation at the interface with submonolayer resolution.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2006 |
| Autor(en): | Schmitt, H. ; Ghafari, M. ; Kruk, R. ; Ellrich, J. ; Hütten, A. ; Schmitt, L. A. ; Hahn, H. |
| Art des Eintrags: | Bibliographie |
| Titel: | Interfacial microstructure of Fe∕AlO[sub x]∕Fe magnetic tunnel junctions in high resolution |
| Sprache: | Englisch |
| Publikationsjahr: | 2006 |
| Verlag: | American Institute of Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 88 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1063/1.2186991 |
| Kurzbeschreibung (Abstract): | Magnetic tunnel junctions were prepared by deposition of a Ta-buffered Fe-AlOx-Fe trilayer on a thermally oxidized silicon wafer. In order to investigate the influence of different Fe oxides like a spinel-like phase and a spinel (Hycernite) on the tunneling magnetoresistance effect, a 57Fe tracer was deposited at the lower barrier interface. Using conversion electron Mössbauer spectroscopy the evolution of chemical, structural, and magnetic changes in the tracer was monitored starting from the as-prepared state and after several annealing steps. The nuclear probe technique enables to resolve phase formation at the interface with submonolayer resolution. |
| Freie Schlagworte: | iron, tantalum, aluminium compounds, magnetic multilayers, tunnelling magnetoresistance, Mossbauer spectroscopy, annealing, interface structure, conversion electron spectra |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 13 Feb 2013 09:33 |
| Letzte Änderung: | 05 Mär 2013 10:05 |
| PPN: | |
| Sponsoren: | This work was funded by the Deutsche Forschungsgemeinschaft (�DFG). �. |
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