Study of the magnetic hysteresis in arrays of ferromagnetic Fe nanowires as a function of the template filling fraction

We report on temperature dependent SQUID magnetization measurements on arrays of ferromagnetic Fe nanowires embedded in nanoporous alumina as a function of the template filling fraction. For partially filled membranes the shape anisotropy prevails and dipolar interactions between the nanowires are w...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 272; pp. 1656 - 1657
Main Authors Sorop, T.G., Nielsch, K., Göring, P., Kröll, M., Blau, W., Wehrspohn, R.B., Gösele, U., de Jongh, L.J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2004
Subjects
Hysteresis
Magnetic nanowires
Magnetization reversal mechanisms
75.60.Ej
75.60.Jk
Magnetization reversal mechanisms
Hysteresis
75.75.+a
Magnetic nanowires
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Summary:We report on temperature dependent SQUID magnetization measurements on arrays of ferromagnetic Fe nanowires embedded in nanoporous alumina as a function of the template filling fraction. For partially filled membranes the shape anisotropy prevails and dipolar interactions between the nanowires are weak. Almost completely Fe-filled membranes show strong dipolar interactions that dominate the shape of the hysteresis loop.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2003.12.510