Low-Dimensional Magnetic Systems in Nanopore Arrays

Author

Bajales, Noelia ; Viqueira, Maria S. ; Avalle, Lucia ; Urreta, Silvia E. ; Bercoff, Paula G.

Author_Institution

Inst. de Fis. "Enrique Gaviola", Cordoba, Argentina

Volume

49

Issue

8

fYear

2013

fDate

Aug. 2013

Firstpage

4610

Lastpage

4613

Abstract

FeCo nanowires 20 nm diameter are synthesized by AC electrodeposition using AAO membranes as templates. The hysteresis and structural properties of the as deposited nanowire arrays are characterized. The orientation dependence of the coercive field measured in the array is compared with the predictions of a magnetization reversal model involving the nucleation and propagation of a transverse wall. The model is promissory because it predicts the experimental curve shape quite well.

Keywords

cobalt alloys; coercive force; electrodeposition; iron alloys; magnetic hysteresis; membranes; nanofabrication; nanomagnetics; nanoporous materials; nanowires; nucleation; AAO membranes; AC electrodeposition; FeCo; anodic aluminum oxide membranes; coercive field; low-dimensional magnetic systems; magnetic hysteresis; nanopore arrays; nanowire arrays; nucleation; size 20 nm; structural properties; Anisotropic magnetoresistance; Iron; Magnetic anisotropy; Magnetic hysteresis; Magnetization reversal; Nanowires; Wires; Alumina template; FeCo nanowires; hysteresis properties; magnetization mechanisms; shape anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2257709

Filename

6566108