S. V. Grigoriev, A. P. Chumakov, A. V. Syromyatnikov, N. A. Grigor'eva, A. I. Okorokov, K. S. Napol'skii, I. V. Roslyakov, A. A. Eliseev, A. V. Lukashin, H. Eckerlebe, “Magnetic properties of a two-dimensional spatially ordered array of nickel nanowires”, Fizika Tverdogo Tela, 2010, Volume 52, Issue 5,Pages <nobr>1011

This article is cited in 10 papers

XX Anniversary Meeting on the Use of Neutron Scattering in Condensed Matter Research (RNICS-2008), Gatchina (October 13-18, 2008)
Functional and nanostructured materials

Magnetic properties of a two-dimensional spatially ordered array of nickel nanowires

S. V. Grigoriev^a, A. P. Chumakov^a, A. V. Syromyatnikov^a, N. A. Grigor'eva^b, A. I. Okorokov^a, K. S. Napol'skii^c, I. V. Roslyakov^c, A. A. Eliseev^c, A. V. Lukashin^c, H. Eckerlebe^d

^a The Petersburg Nuclear Physics Institute, The National Research Center "Kurchatov Institute"
^b Saint Petersburg State University
^c Lomonosov Moscow State University
^d GKSS Research Centre, Geesthacht, Germany

Abstract: The structural and magnetic characteristics of two-dimensional spatially ordered arrays of magnetic nickel nanowires embedded in the anodized alumina template have been investigated. It has been shown using small-angle polarized-neutron diffraction that, there exists the samples under investigation, in a highly ordered hexagonal structure of pores and magnetic nanowires separated by a characteristic distance $d$ = 106 $\pm$ 2 nm. An analysis has been made of different contributions to neutron scattering, such as the nonmagnetic (nuclear) contribution, the magnetic contribution dependent on the magnetic field, and the interference contribution indicating a correlation between the magnetic and nuclear structures. The performed analysis of the results obtained has demonstrated that, when the magnetic field is applied perpendicular to the longitudinal axis of the nanowire in a completely magnetized sample, there arise demagnetizing fields around each nanowire that form a regular hexagonal lattice.