Reversible magnetization variations in large field ranges associated to periodic arrays of antidots

Author

Gonzales, J.M. ; Chubykalo-Fesenko, O.A. ; Garcia-Sanchez, F. ; Torres-Bruna, J.M. ; Bartolome, J. ; Vinuesa, L. M Garcia

Author_Institution

Unidad Asociada ICMM/IMA, Madrid, Spain

fYear

2005

fDate

4-8 April 2005

Firstpage

1843

Lastpage

1844

Abstract

The demagnetization processes taking place in different arrays of circular antidots lithographed in single crystalline Fe films were presented. These arrays have square symmetry and were characterized by geometric parameters with dimensions in the range of the magnetostatic coupling characteristic length. Two different models were considered in this study. The following results were obtained: (i) crossover of the demagnetization process was observed in all modeled system, (ii) coercivity decreased with the increase in interantidot distance and large reversible demagnetization before reversible rotation occurred, and (iii) in finite systems the coercivity decreases with respect to the infinite arrays.

Keywords

coercive force; demagnetisation; ferromagnetic materials; iron; magnetic thin films; Fe; circular antidots; coercivity; demagnetization processes; geometric parameters; infinite arrays; interantidot distance; lithography; magnetostatic coupling characteristic length; periodic arrays; reversible demagnetization; reversible magnetization variations; reversible rotation; single crystalline films; square symmetry; Coercive force; Couplings; Demagnetization; Magnetic moments; Magnetization; Magnetostatics;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464355

Filename

1464355