Electrodeposited Nickel-Iron Thin Films
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概要
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Magnetic properties of nickel-iron thin films electrodeposited onto copper substrates have been experimentally studied. (1) The coercive force Hc takes the minimum value at the film composition about 81.5Ni-18.5Fe. The squareness ratio Br/Bs of Fe-rich films is very close to 1, while that of Ni-rich films decreases with an increase of nickel concentration. (2) The coercive force Hc is proportional to d^<-n> for the 71∼88%Ni-Fe films, 1200 to 14000Å thick. The exponent n takes a constant value in Fe-rich regions, while the value gradually decreases with an increase of nickel concentration passing through 81.5Ni-18.5Fe. (3) The uniaxial anisotropy is remarkably affected by the geometrical states of the surface of the substrates. The relation between the composition of nickel-iron films and the depositing conditions has also been studied. The depositing conditions to prepare the film having a minimum Hc are described.
- 社団法人応用物理学会の論文
- 1963-08-15
著者
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Uehara Yasuo
Research Institute Of Electrical Communication Tohoku University:(present Address) 1st Research Cent
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Uehara Yasuo
Research Institute Of Electrical Communication Tohoku University:(present Address) First Research Ce