Crystallographic texture and angular dependence of coercivity of ordered CoPt thin film

Abstract

Effect of crystallographic texture on the angular dependence of coercivity of ordered CoPt thin film was studied by successfully controlling the texture of the ordered CoPt thin film. We have developed, based on the Stoner–Wohlfarth interacting particles model, a micromagnetic simulation technique which can simulate the effect of distribution of magnetocrystalline easy axis on the magnetization behavior of thin film. The good agreement between the experiments and simulation suggested that the magnetization reversal in ordered CoPt thin film occurs not by the domain wall motion but by the Stoner–Wohlfarth interacting particles model.

Magnetic Anisotropy of FeNi Multilayer Films with Different Orientations of the Magnetic Anisotropy Axes in Adjacent Layers

“…It can be seen that for both samples, the best agreement is observed in the range of angles ±15° near the hard axis, where magnetization reversal of the film occurs through For single-layer and four-layer FeNi films, the angular dependencies of the coercive force H c (φ) were also plotted (Figure 4a,b). The found values of the anisotropy field for singlelayer and four-layer films were used to describe the angular dependence of the coercive force H c (φ) within the Stoner-Wohlfarth model using the equation H c (φ) = H a × |cosφ|, where φ is the angle between the measurement field and the easy magnetization axes [34]. It can be seen that for both samples, the best agreement is observed in the range of angles ±15 • near the hard axis, where magnetization reversal of the film occurs through coherent rotation of magnetic moments.…”

Magnetization reversal modes and coercive field dependence on perpendicular magnetic anisotropy in FePt thin films

“…The angular dependence of the coercivity (ADC) has a characteristic behavior in each model. The ADC is thus an excellent probe for analyzing the magnetization reversal mechanisms in magnetic materials [31].…”

Influence of an Atmosphere of Annealing on Magnetic Properties of Nanosize Films of FePt Alloy

“…3). Оскільки коерцитивна сила є структурно чутливим параметром, який істотно залежить не лише від розміру зерен, а й від їх переважної орієнтації в певному напрямку [20,21], можна припустити, що вищі значення коерцитивної сили після відпалу плівок в атмосфері арґону зумовлено текстурою в кристалографічному напрямку [001], що є перпен- дикулярним до поверхні плівки (рис. 2, а).…”