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http://dx.doi.org/10.4283/JKMS.2008.18.6.227

Magnetic and Structural Properties of CoFeZr Alloy Films and Magnetoresistive Properties of Spin Valves Incorporating Amorphous CoFeZr Layer  

Ahn, Whang-Gi (Department of Materials Science and Engineering, Korea University)
Park, Dae-Won (Department of Materials Science and Engineering, Korea University)
Kim, Ki-Su (Department of Materials Science and Engineering, Korea University)
Lee, Seong-Rae (Department of Materials Science and Engineering, Korea University)
Publication Information
Journal of the Korean Magnetics Society / v.18, no.6, 2008 , pp. 227-231 More about this Journal
Abstract
Magnetic and structural properties of CoFeZr alloy films as a function of Zr concentration and magnetoresistive properties of spin valves incorporated with amorphous CoFeZr alloy films have been studied. Magnetization and coercivity of CoFeZr alloy films decreased as the Zr content increased. A single amorphous CoFeZr phase was formed when the Zr content is about above 18 at%. Magnetoresistance ratio and exchange coupling field of spin valves with amorphous CoFeZr were reduced slightly as compared with spin valves with CoFe because the resistance of amophous CoFeZr is higher than that of crystalline CoFe. However, the ${\Delta}{\rho}$ of spin valves with amorphous CoFeZr was improved due to reduction of current shunting.
Keywords
CoFeZr alloy film; amorphous; spin valve;
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