Magnetic properties of compositionally modulated thin films
- 1 November 1982
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (11), 8046-8051
- https://doi.org/10.1063/1.330256
Abstract
The magnetization density per cm3 of Ni-content of compositionally modulated Cu–Ni thin films at 5 K was found to depend on the modulation wavelength (λ) and amplitude (A) and reached ∼90% of that of pure Ni. Short-λ and low-T studies on Cu–Ni showed an inter-wavelength coupling of the moments of Ni-rich regions that may depend on the thickness of the latter relative to that of the Cu-rich regions. Evidence for xy-like two-dimensional ferromagnetism was also observed in Cu–Ni with λ containing only a few Ni-rich planes. Coercivity and anisotropy were found to depend strongly on the modulation characteristics; the former increased sharply with decreasing λ while the latter had an oscillatory dependence.Keywords
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