Buckow, A. ; Retzlaff, R. ; Kurian, J. ; Alff, L. (2012)
MBE growth of LaNiBiO1-x thin films.
In: Physics Procedia, 27
doi: 10.1016/j.phpro.2012.03.470
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The discovery of superconductivity in FeAs based compounds has generated tremendous interest in the search for new superconducting materials. The toxic nature of As naturally calls for the search for alternative materials with similar structure which may be superconducting. LaNiBiO1-x has the same structure as FeAs-1111. We have grown LaNiBiO1-x thin films on (100) MgO substrate by reactive molecular beam epitaxy (RMBE). Films were grown by simultaneous evaporation of La, Ni and Bi from elemental sources by electron beam evaporators and the in situ oxidation is achieved by an RF activated oxygen radical source. The reflection high energy electron diffraction and X-ray diffraction analysis revealed that the films were polycrystalline in nature. The LaNiBiO1-x phase forms only in a very narrow growth parameter window and is very sensitive to the oxidation conditions. The polycrystalline films have a Tc (onset) of ∼ 5.5 K.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Buckow, A. ; Retzlaff, R. ; Kurian, J. ; Alff, L. |
| Art des Eintrags: | Bibliographie |
| Titel: | MBE growth of LaNiBiO1-x thin films |
| Sprache: | Englisch |
| Publikationsjahr: | 2012 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physics Procedia |
| Jahrgang/Volume einer Zeitschrift: | 27 |
| DOI: | 10.1016/j.phpro.2012.03.470 |
| Kurzbeschreibung (Abstract): | The discovery of superconductivity in FeAs based compounds has generated tremendous interest in the search for new superconducting materials. The toxic nature of As naturally calls for the search for alternative materials with similar structure which may be superconducting. LaNiBiO1-x has the same structure as FeAs-1111. We have grown LaNiBiO1-x thin films on (100) MgO substrate by reactive molecular beam epitaxy (RMBE). Films were grown by simultaneous evaporation of La, Ni and Bi from elemental sources by electron beam evaporators and the in situ oxidation is achieved by an RF activated oxygen radical source. The reflection high energy electron diffraction and X-ray diffraction analysis revealed that the films were polycrystalline in nature. The LaNiBiO1-x phase forms only in a very narrow growth parameter window and is very sensitive to the oxidation conditions. The polycrystalline films have a Tc (onset) of ∼ 5.5 K. |
| Freie Schlagworte: | pnictide superconductors, molecular beam epitaxy, thin films |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 07 Jan 2014 09:35 |
| Letzte Änderung: | 07 Jan 2014 09:35 |
| PPN: | |
| Sponsoren: | This work is supported by DFG (Deutsche Forschungsgemeinschaft), Priority Program on Pnictdide Superconductors SPP 1458. |
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