Magnetoimpedance of Galvanostatically Electroplated Ni-Fe Permalloy Wires

Author

Lee, Hojun ; Bang, Wonbae ; Hong, Kimin ; Kim, Dohun ; Na, Jiwon ; Jeung, Won Young

Author_Institution

Dept. of Phys., Chungnam Nat. Univ., Daejeon

Volume

45

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

2748

Lastpage

2749

Abstract

We studied the magnetoimpedance of narrow Ni-Fe Permalloy wires prepared by electrodeposition. The wires were fabricated by lithographical patterning and chemical etching of electroplated thin films. The microstructure and magnetic property of the deposit were adjusted by using an organic additive added to the electrolyte. Aspect ratio of the wires was varied between 10 and 50 by changing the length of the wire while the thickness and width were fixed. The magnetoimpedance exhibited highest value at 30 MHz and was 18-25% depending on the aspect ratio. The magnetic fields for the highest magnetoresistance increased in proportion to the frequency in the range between 1 and 100 MHz.

Keywords

Permalloy; crystal microstructure; electrolytes; electroplating; etching; lithography; magnetic thin films; magnetoresistance; metallic thin films; soft magnetic materials; NiFe; Permalloy thin films; chemical etching; electrodeposition; electrolyte; electroplated thin films; frequency 1 MHz to 100 MHz; galvanostatically electroplated permalloy wires; lithographical patterning; magnetic property; magnetoimpedance; microstructure; soft magnetic materials; Electroplating; magnetoimpedance; permalloy; wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2020546

Filename

4957743