Thielsch, J. ; Suess, D. ; Schultz, L. ; Gutfleisch, O. (2013)
Dependence of coercivity on length ratios in sub-micron Nd2Fe14B particles with rectangular prism shape.
In: Journal of Applied Physics, 114 (22)
doi: 10.1063/1.4846795
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Demagnetization curves of sub-micron Nd2Fe14B particles with rectangular prism shapes were simulated by micromagnetic simulations. Coercivity decreases with increasing particle thickness for same particle volumes. This unexpected behavior can be explained by different resulting angles of the total effective field when superimposing the applied field vector with the stray field vector at the point of the first reversal event. The angular dependence of the nucleation field follows a Stoner-Wohlfarth like behavior.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Thielsch, J. ; Suess, D. ; Schultz, L. ; Gutfleisch, O. |
| Art des Eintrags: | Bibliographie |
| Titel: | Dependence of coercivity on length ratios in sub-micron Nd2Fe14B particles with rectangular prism shape |
| Sprache: | Englisch |
| Publikationsjahr: | Dezember 2013 |
| Verlag: | AIP Publishing LLC |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 114 |
| (Heft-)Nummer: | 22 |
| DOI: | 10.1063/1.4846795 |
| Kurzbeschreibung (Abstract): | Demagnetization curves of sub-micron Nd2Fe14B particles with rectangular prism shapes were simulated by micromagnetic simulations. Coercivity decreases with increasing particle thickness for same particle volumes. This unexpected behavior can be explained by different resulting angles of the total effective field when superimposing the applied field vector with the stray field vector at the point of the first reversal event. The angular dependence of the nucleation field follows a Stoner-Wohlfarth like behavior. |
| Freie Schlagworte: | boron alloys, coercive force, demagnetisation, iron alloys, magnetic particles, neodymium alloys, nucleation |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 10 Mär 2014 10:10 |
| Letzte Änderung: | 10 Mär 2014 10:10 |
| PPN: | |
| Sponsoren: | D.S. acknowledges the financial support from the Austrian Federal Ministry of Economy, Family and Youth and the National Foundation for Research, Technology and Development as well as the Austrian Science Fund FWF, Project SFB-ViCoM, F4112-N13. |
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