3-D Architectural Approach for Manipulation of the Micromagnetic Configuration in Nanodisks

Author

Stebliy, Maxim E. ; Ognev, Alexey V. ; Samardak, Alexander S. ; Diga, Kirill S. ; Chebotkevich, Ludmila A.

Author_Institution

Lab. of Thin Film Technol., Far Eastern Fed. Univ., Vladivostok, Russia

Volume

48

Issue

11

fYear

2012

Firstpage

4406

Lastpage

4408

Abstract

We report on novel method of manipulation of the micromagnetic configuration realized in 3-D nanostructures “small disk on the big disk”. Our method allows to control vortex chirality in a submicrometer magnetic disk without use of its deformation or defects of shape. Manipulation is performed by means of the fabrication on the top of disk a smaller disk with a diameter 200 nm. This paper shows that it is possible to explicitly set the magnetization direction of the small disk. Thus, the proposed system has four stable magnetic configurations that are uniquely specified by the direction of an external magnetic field.

Keywords

magnetic hysteresis; micromagnetics; nanostructured materials; remanence; 3D architectural approach; external magnetic field direction; magnetization direction; micromagnetic configuration; nanodisks; shape defects; shape deformation; size 200 nm; submicrometer magnetic disk; vortex chirality; Magnetic cores; Magnetic domains; Magnetic hysteresis; Magnetic resonance imaging; Magnetization; Magnetostatics; Micromagnetics; Hysteresis; magnetic vortex; micromagnetic structures; nanodisk;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2196269

Filename

6332941