TU Darmstadt / ULB / TUbiblio

Room temperature reversible tuning of magnetism of electrolyte-gated La0.75Sr0.25MnO3 nanoparticles

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
PPN:
Export:
Suche nach Titel in: TUfind oder in Google
Frage zum Eintrag Frage zum Eintrag

Optionen (nur für Redakteure)
Redaktionelle Details anzeigen Redaktionelle Details anzeigen