Microstructure, optical, electrical, and magnetic properties of ZnO/CuO thin films prepared using two-stage magnetron sputtering and diffusion doping process

2020 ◽  
Vol 31 (5) ◽  
pp. 4017-4026
Author(s):  
Tai-Hsiang Liu ◽  
Fei-Yi Hung ◽  
Cheng-Hung Chen ◽  
Kuan-Jen Chen
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Magnetron Sputtering ◽  
Two Stage ◽  
Electrical And Magnetic Properties ◽  
And Diffusion

The Structure and Magnetic Properties of NiZn-Ferrite Films Deposited by Magnetron Sputtering at Room Temperature

2013 ◽  
Vol 690-693 ◽  
pp. 1702-1706 ◽  
Author(s):  
Shuang Jun Nie ◽  
Hao Geng ◽  
Jun Bao Wang ◽  
Lai Sen Wang ◽  
Zhen Wei Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Magnetron Sputtering ◽  
Saturation Magnetization ◽  
Room Temperature ◽  
Oxygen Flow ◽  
Flow Ratio ◽  
Study Results ◽  
Ferrite Thin Films ◽  
Ferrite Films

NiZn-ferrite thin films were deposited onto silicon and glass substrates by radio frequency magnetron sputtering at room temperature. The effects of the relative oxygen flow ratio on the structure and magnetic properties of the thin films were investigated. The study results reveal that the films deposited under higher relative oxygen flow ratio show a better crystallinity. Static magnetic measurement results indicated that the saturation magnetization of the films was greatly affected by the crystallinity, grain dimension, and cation distribution in the NiZn-ferrite films. The NiZn-ferrite thin films with a maximum saturation magnetization of 151 emucm-3, which is about 40% of the bulk NiZn ferrite, was obtained under relative oxygen flow ratio of 60%.

Percolation Effects in the Mechanical Properties of Granular Ni-A12O3 thin films

1990 ◽  
Vol 195 ◽  
Author(s):  
T.E. Schlesinger ◽  
A. Gavrin ◽  
R.C. Cammarata ◽  
C.-L. Chien
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Plastic Deformation ◽  
Magnetic Properties ◽  
Percolation Threshold ◽  
Volume Fraction ◽  
Electrical And Magnetic Properties ◽  
Low Load

ABSTRACTThe mechanical properties of sputtered Ni-Al2O3 granular thin films were investigated by low load microharaness testing. It was found that the microhardness of these films displayed a percolation threshold at a nickel volume fraction of about 0.6, below which the hardness is greatly enhanced. This behavior is qualitatively similar to the electrical and magnetic properties of these types of films. A percolation threshold in hardness can be understood as due to a change in the mechanism for plastic deformation.

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