The magnetization reversal of both the continuous and patterned Fe films, grown in ultra high vacuum byatomicallycontrolled evaporation through a mask, was studied using magneto-optic Kerr magnetometry. The hysteresis loopsrecorded from continuous Fe film as a function of the direction of the applied field, evidence a well-defined uniaxialanisotropy, induced during the film deposition. The patterned area shows a magnetic anisotropy completely differentfrom that of the continuous film and related to the lattice symmetry. Scanning electron microscopy images of thepatterned area allows us to exclude effects related to deviations from circularityof the shape of the single dots. The closerelationship between the anisotropydirections and the pattern lattice axes indicates that the new anisotropyoriginatesfrom the interdot dipolar coupling interaction.r 2003 Elsevier B.V. All rights reserved.

Evidence for interdot coupling in an array of micrometric Fe dots / D'Addato, Sergio; P., Vavassori; D., Bisero; Liberati, Marco; F., Feri; E., DI FABRIZIO; Valeri, Sergio. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - STAMPA. - 272-276:(2004), pp. 1373-1375.

Evidence for interdot coupling in an array of micrometric Fe dots

D'ADDATO, Sergio;LIBERATI, Marco;VALERI, Sergio
2004

Abstract

The magnetization reversal of both the continuous and patterned Fe films, grown in ultra high vacuum byatomicallycontrolled evaporation through a mask, was studied using magneto-optic Kerr magnetometry. The hysteresis loopsrecorded from continuous Fe film as a function of the direction of the applied field, evidence a well-defined uniaxialanisotropy, induced during the film deposition. The patterned area shows a magnetic anisotropy completely differentfrom that of the continuous film and related to the lattice symmetry. Scanning electron microscopy images of thepatterned area allows us to exclude effects related to deviations from circularityof the shape of the single dots. The closerelationship between the anisotropydirections and the pattern lattice axes indicates that the new anisotropyoriginatesfrom the interdot dipolar coupling interaction.r 2003 Elsevier B.V. All rights reserved.
272-276
1373
1375
Evidence for interdot coupling in an array of micrometric Fe dots / D'Addato, Sergio; P., Vavassori; D., Bisero; Liberati, Marco; F., Feri; E., DI FABRIZIO; Valeri, Sergio. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - STAMPA. - 272-276:(2004), pp. 1373-1375.
D'Addato, Sergio; P., Vavassori; D., Bisero; Liberati, Marco; F., Feri; E., DI FABRIZIO; Valeri, Sergio
File in questo prodotto:
File Dimensione Formato  
FedotsJMM.pdf

non disponibili

Tipologia: Post-print dell'autore (bozza post referaggio)
Dimensione 198.83 kB
Formato Adobe PDF
198.83 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/460188
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact