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Article Dans Une Revue Physics Procedia Année : 2013

Magnetic Nanowires Investigated by Polarized SANS

Frédéric Ott
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Grégory Chaboussant
Laurent Cagnon
Olivier Fruchart

Résumé

Polarized SANS results obtained on ferromagnetic Co nanowires embedded in alumina (Al2O3) porous matrices are reported. The triangular arrays of aligned nanowires are investigated as a function of the external magnetic field in order to determine experimentally the real space magnetization M' ('r) distribution inside the material during the magnetic hys- teresis cycle. The observation of field-dependent SANS intensities allows us to characterize the influence of stray fields. Micromagnetic calculations are compared to the SANSPOL experimental data. These results show that SANSPOL is a technique able to address real-space magnetization distributions in magnetic nanosystems.

Dates et versions

hal-00857702 , version 1 (03-09-2013)

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Thomas Maurer, Fatih Zighem, S. Gautrot, Frédéric Ott, Grégory Chaboussant, et al.. Magnetic Nanowires Investigated by Polarized SANS. Physics Procedia, 2013, 42, pp.74. ⟨10.1016/j.phpro.2013.03.178⟩. ⟨hal-00857702⟩
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