Determination of easy axis distribution in recording media

Texture effects in particulate media

“…Ref. [5]). These met with limited success due to thicker coatings and the limits of microscopy techniques.…”

“…Refs. [4,5]), based on the measurement of remanence as a function of angle. In the past there have been a number of attempts to correlate the magnetically determined distribution to the physical orientation of the particles (e.g.…”

“…The easy axis distributions have been determined by magnetic measurements analysed using a modification of the technique of el-Hilo et al [5] electronmicroscopy (TEM) with sample preparation using a microtome.…”

Easy axis distribution in interacting fine-particle systems

“…The determination of the distribution of easy axes is achieved by measuring the angular dependence of the remanence parallel and perpendicular to the applied field in all the previous theories. [3][4][5] Following the analysis given above, we found for these angular dependencies the subsequent results. From the condition for stable equilibrium of the magnetization at remanence and considering that interaction is much smaller than anisotropy ͑e.g., recording media and permanent magnets͒, we find that…”

“…Shtrikman and Treves 3 described a model that allows the determination of that distribution from the measurements of the angular dependence of the remanence. Subsequently, el Hilo et al 4 proposed a technique that simplified the above theory in two-dimensional systems. Recently, Harrell et al 5 introduced two new methods also based upon the angular dependence of remanence.…”