Enhanced Magnetization Density of a Compositionally Modulated CuNi Thin Film

作者：B. Thaler, John B. Ketterson, J. E. Hilliard · 发表于：Physical Review Letters · 年份：1978 · DOI：10.1103/physrevlett.41.336 · 被引用次数：123 · 研究领域：Magnetic properties of thin films、Magnetic Properties and Applications、Magnetic Properties of Alloys

The magnetization density, $M$, of a CuNi thin film containing a 30-\AA{} composition modulation has been deduced from ferromagnetic resonance data between 120 and 325\ifmmode^\circ\else\textdegree\fi{}K. The data imply the existence of high-$M$ regions in the modulated film. At 300\ifmmode^\circ\else\textdegree\fi{}K, $M$ is about 200 emu/${\mathrm{cm}}^{3}$, and increases as the temperature decreases. By 125\ifmmode^\circ\else\textdegree\fi{}K, $M$ is significantly larger than that of pure Ni. After most of the modulation was annealed out, $M$ had decreased by an order of magnitude.