Winkler, A. ; Narayanan, N. ; Mikhailova, D. ; Bramnik, K. G. ; Ehrenberg, H. ; Fuess, H. ; Vaitheeswaran, G. ; Kanchana, V. ; Wilhelm, F. ; Rogalev, A. ; Kolchinskaya, A. ; Alff, L. (2009)
Magnetism in Re-based ferrimagnetic double perovskites.
In: New Journal of Physics, 11 (7)
doi: 10.1088/1367-2630/11/7/073047
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We have investigated spin and orbital magnetic moments of the Re 5d ion in the double perovskites A2FeReO6 (A=Ba, Sr, Ca) by x-ray magnetic circular dichroism (XMCD) at the Re L2, 3 edges. In these ferrimagnetic compounds, an unusually large negative spin and positive orbital magnetic moment at the Re atoms was detected. The presence of a finite spin magnetic moment in a 'non-magnetic' double perovskite as observed in the double perovskite Sr2ScReO6 proves that Re has also a small, but finite intrinsic magnetic moment. We further show for the examples of Ba and Ca that the usually neglected alkaline earth ions undoubtedly also contribute to the magnetism in the ferrimagnetic double perovskites.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2009 |
| Autor(en): | Winkler, A. ; Narayanan, N. ; Mikhailova, D. ; Bramnik, K. G. ; Ehrenberg, H. ; Fuess, H. ; Vaitheeswaran, G. ; Kanchana, V. ; Wilhelm, F. ; Rogalev, A. ; Kolchinskaya, A. ; Alff, L. |
| Art des Eintrags: | Bibliographie |
| Titel: | Magnetism in Re-based ferrimagnetic double perovskites |
| Sprache: | Englisch |
| Publikationsjahr: | 29 Juli 2009 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | New Journal of Physics |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 7 |
| DOI: | 10.1088/1367-2630/11/7/073047 |
| Kurzbeschreibung (Abstract): | We have investigated spin and orbital magnetic moments of the Re 5d ion in the double perovskites A2FeReO6 (A=Ba, Sr, Ca) by x-ray magnetic circular dichroism (XMCD) at the Re L2, 3 edges. In these ferrimagnetic compounds, an unusually large negative spin and positive orbital magnetic moment at the Re atoms was detected. The presence of a finite spin magnetic moment in a 'non-magnetic' double perovskite as observed in the double perovskite Sr2ScReO6 proves that Re has also a small, but finite intrinsic magnetic moment. We further show for the examples of Ba and Ca that the usually neglected alkaline earth ions undoubtedly also contribute to the magnetism in the ferrimagnetic double perovskites. |
| Freie Schlagworte: | Condensed matter: electrical, magnetic and optical |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 30 Mär 2012 08:36 |
| Letzte Änderung: | 25 Apr 2016 06:50 |
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