Title :
Giant Magneto–Impedance Effect in Thin Zinc Oxide Coated on Co-Based (2705 X) Amorphous Ribbons
Author :
Taysioglu, Asli Ayten ; Kaya, Yunus ; Peksoz, Ahmet ; Akay, Sertan Kemal ; Derebasi, Naim ; Irez, Gazi ; Kaynak, Gokay
Author_Institution :
Dept. of Phys., Uludag Univ., Bursa, Turkey
Abstract :
ZnO film coated Co-based (2705 X) amorphous ribbons are prepared by the successive ionic layer adsorption and reaction technique. The influence of coating on giant magneto-impedance (GMI) has been investigated over a frequency range from 0.1 to 3.5 MHz and under a static magnetic field between -8 and +8 kA/m. The highest GMI ratio of 15.63% was obtained in the coated Co-based amorphous ribbons which is 80% higher than the sample without coating. The results indicate that the surface coating process plays an important role in the GMI effect.
Keywords :
II-VI semiconductors; amorphous magnetic materials; cobalt alloys; ferromagnetic materials; giant magnetoresistance; interface magnetism; semiconductor thin films; semiconductor-metal boundaries; surface roughness; wide band gap semiconductors; zinc compounds; 2705 X amorphous ribbons; CoJkJk; GMI ratio; ZnO-CoJkJk; cobalt-based amorphous ribbons; frequency 0.1 MHz to 3.5 MHz; giant magnetoimpedance effect; ionic layer adsorption-reaction technique; surface roughness; thin zinc oxide coating; Amorphous magnetic materials; Amorphous materials; Atomic force microscopy; Coatings; Frequency; Magnetic materials; Scanning electron microscopy; Surface topography; Temperature; Zinc oxide; Amorphous magnetic materials; atomic force microscopy; giant magneto–impedance (GMI);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2035329
