Abstract
The columnar grain structure in obliquely deposited iron films has been magnetically investigated by measuring the anisotropy field and the effective saturation magnetization. The incidence angle was 60 ° and the substrate temperature T s range from 473 to 698 K. At low temperatures ( T s < 650 K) columnar grains are sparse but they align along the direction perpendicular to the incidence plane. On the other hand the packing of columnar grains at high temperatures ( T s ≥ 650 K) is dense and isotropic. The electron microscopic observation supported these results and the X-ray analysis found out two-degree and one-degree orientations at low and high temperatures, respectively. The change in columnar grain structure with T s and the evolution of texture are discussed on the basis of the adatom movement due to momenta.
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