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Fabrication and magnetic studies of (Co, Zn)-doped γ-Fe2 O3 thin films

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6 Author(s)
Kuo, P.C. ; Inst. of Mater. Sci. & Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Yao, Y.D. ; Chen, J.W. ; Lin, C.H.
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A fabrication process for the sputtered (Co, Zn)-doped γ-Fe 2O3 thin films with quite a short reduction time (10 minutes) at temperature between 350-370°C and with oxidation time about 20 minutes at temperature between 310-330°C has been established. It has been observed that, with a few percent of Co and Zn content, the Zn dopant has the effect of producing higher saturation magnetization and better thermal stability of coercivity, as well as better suppressing grain growth effect during the heat treatments when these films are compared to γ-Fe2O3 thin films doped with Co only

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Magnetics, IEEE Transactions on  (Volume:30 ,  Issue: 6 )