Hysteresis Properties of Hexagonal Arrays of FePd Nanowires

Author

Viqueira, Maria S. ; Garcia, Sebastian E. ; Urreta, Silvia E. ; Pozo Lopez, Gabriela ; Fabietti, Luis M.

Author_Institution

Fac. de Mat., Astron. y Fis., Univ. Nac. de Cordoba, Cordoba, Argentina

Volume

49

Issue

8

fYear

2013

fDate

Aug. 2013

Firstpage

4498

Lastpage

4501

Abstract

FePd nanowires (NWs) with different compositions have been grown into anodized aluminum oxide templates (AAO) by AC electrodeposition at room temperature. The effects of nanowire composition and morphology on the hysteresis properties of the ordered array of NWs are investigated. All the NWs are polycrystalline; the Fe-rich wires have a bcc structure while the Pd rich ones are fcc. FePd NWs are ferromagnetic and the spontaneous magnetization is found to be parallel to the nanowire long axis (out of plane easy axis) and both, the saturation polarization and the coercive field increase with the iron content.

Keywords

coercive force; electrodeposition; ferromagnetic materials; iron alloys; magnetic hysteresis; nanofabrication; nanowires; palladium alloys; AC electrodeposition; FePd; NW ordered array; anodized aluminum oxide templates; bcc structure; coercive field; fcc structure; ferromagnetic materials; hexagonal arrays; hysteresis properties; iron content; morphology; nanowire composition effects; nanowire long axis; polycrystalline NW; saturation polarization; spontaneous magnetization; temperature 293 K to 298 K; Anisotropic magnetoresistance; Iron; Magnetic hysteresis; Magnetic properties; Nanowires; Shape; Wires; Alumina template; FePd nanowires; hysteresis properties; shape anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2258461

Filename

6566199