Gölden, D. ; Hildebrandt, E. ; Alff, L. (2017)
Thin film phase diagram of iron nitrides grown by molecular beam epitaxy.
In: Journal of Magnetism and Magnetic Materials, 422
doi: 10.1016/j.jmmm.2016.07.074
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A low-temperature thin film phase diagram of the iron nitride system is established for the case of thin films grown by molecular beam epitaxy and nitrided by a nitrogen radical source. A fine-tuning of the nitridation conditions allows for growth of α′α′-Fe8Nx with increasing c/ac/a-ratio and magnetic anisotropy with increasing x until almost phase pure α′α′-Fe8N1 thin films are obtained. A further increase of nitrogen content below the phase decomposition temperature of α′α′-Fe8N (180 °C) leads to a mixture of several phases that is also affected by the choice of substrate material and symmetry. At higher temperatures (350 °C), phase pure γ′γ′-Fe4N is the most stable phase.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Gölden, D. ; Hildebrandt, E. ; Alff, L. |
| Art des Eintrags: | Bibliographie |
| Titel: | Thin film phase diagram of iron nitrides grown by molecular beam epitaxy |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Januar 2017 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Magnetism and Magnetic Materials |
| Jahrgang/Volume einer Zeitschrift: | 422 |
| DOI: | 10.1016/j.jmmm.2016.07.074 |
| URL / URN: | https://doi.org/10.1016/j.jmmm.2016.07.074 |
| Kurzbeschreibung (Abstract): | A low-temperature thin film phase diagram of the iron nitride system is established for the case of thin films grown by molecular beam epitaxy and nitrided by a nitrogen radical source. A fine-tuning of the nitridation conditions allows for growth of α′α′-Fe8Nx with increasing c/ac/a-ratio and magnetic anisotropy with increasing x until almost phase pure α′α′-Fe8N1 thin films are obtained. A further increase of nitrogen content below the phase decomposition temperature of α′α′-Fe8N (180 °C) leads to a mixture of several phases that is also affected by the choice of substrate material and symmetry. At higher temperatures (350 °C), phase pure γ′γ′-Fe4N is the most stable phase. |
| Freie Schlagworte: | Iron Nitride, Molecular beam epitaxy, Thin films, Phase diagram, Nitrides, FeN |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten |
| Hinterlegungsdatum: | 19 Mai 2017 09:06 |
| Letzte Änderung: | 31 Jan 2019 07:51 |
| PPN: | |
| Sponsoren: | We thank the German federal state of Hessen through its excellence program LOEWE RESPONSE for financial support. |
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