Exchange coupled composite FePt/TbCo/[Co/Ni]N films with an TbCo interlayer
Bin Ma, G. Y. Situ, H. G. Chu and 1 more
AIP Advances · 2017
doi:10.1063/1.4977501 (opens in a new tab)
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Abstract
The exchange coupled composite FePt/TbCo/[Co/Ni]N films have been prepared by DC magnetron sputtering. The net magnetization of ferromagnetic TbCo changes with the temperature variation, and then the magnetic configuration of FePt/TbCo/[Co/Ni]N changes. When a RE-dominated Tb32Co68 is inserted, FePt/Tb32Co68/[Co/Ni]5 has high coercivity at room temperature because of its synthesis ferrimagnetic sandwich structure, but small coercivity is obtained when the temperature is higher than 200 °C because of its graded ECC structure.
Abstract licence: CC BY
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