Mishra, A. K. ; Darbandi, Azad J. ; Leufke, Philipp M. ; Kruk, Robert ; Hahn, Horst (2013)
Room temperature reversible tuning of magnetism of electrolyte-gated La0.75Sr0.25MnO3 nanoparticles.
In: Journal of Applied Physics, 113 (3)
doi: 10.1063/1.4778918
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Reversible control of magnetization and Curie temperature (TC) by electrostatic modulation of the surface charge carrier density is presented for the strongly correlated La0.75Sr0.25MnO3 (LSMO) system. The nanoparticulate LSMO was synthesized by spray pyrolysis. A controlled post annealing was carried out to obtain a sharp magnetic transition slightly above room temperature along with favorable surface-to-volume ratios. Resulting nanoporous LSMO was electrostatically charged using a non-aqueous electrolyte with applied voltage limited within the purely capacitive window. The electrostatic charging effect on magnetization was investigated around TC for varying temperatures and applied magnetic fields. The resultant magnetization modulation upon charging is discussed in terms of the reversible electrostatic hole doping.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Mishra, A. K. ; Darbandi, Azad J. ; Leufke, Philipp M. ; Kruk, Robert ; Hahn, Horst |
| Art des Eintrags: | Bibliographie |
| Titel: | Room temperature reversible tuning of magnetism of electrolyte-gated La0.75Sr0.25MnO3 nanoparticles |
| Sprache: | Englisch |
| Publikationsjahr: | 21 Januar 2013 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 113 |
| (Heft-)Nummer: | 3 |
| DOI: | 10.1063/1.4778918 |
| Kurzbeschreibung (Abstract): | Reversible control of magnetization and Curie temperature (TC) by electrostatic modulation of the surface charge carrier density is presented for the strongly correlated La0.75Sr0.25MnO3 (LSMO) system. The nanoparticulate LSMO was synthesized by spray pyrolysis. A controlled post annealing was carried out to obtain a sharp magnetic transition slightly above room temperature along with favorable surface-to-volume ratios. Resulting nanoporous LSMO was electrostatically charged using a non-aqueous electrolyte with applied voltage limited within the purely capacitive window. The electrostatic charging effect on magnetization was investigated around TC for varying temperatures and applied magnetic fields. The resultant magnetization modulation upon charging is discussed in terms of the reversible electrostatic hole doping. |
| Freie Schlagworte: | Curie temperature, carrier density, electrolytes, lanthanum compounds, magnetic annealing, magnetic particles, magnetisation reversal, nanofabrication, nanomagnetics, pyrolysis, strongly correlated electron systems, strontium compounds, surface charging, surface magnetism, thermal spraying |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 06 Feb 2014 09:13 |
| Letzte Änderung: | 06 Feb 2014 09:13 |
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