Kinetics of LPE Growth and Its Influence on Magnetic Properties

Abstract

The effects of growth conditions on the magnetic properties of substituted rare‐earth iron garnets grown by liquid phase epitaxy are discussed. Particular emphasis is placed on the influence of growth rate, growth temperature and growth procedure on the relevant magnetic properties of epitaxial garnet films.Data showing growth rate as a function of rotation rate and the degree of supersaturation are presented. The relationship between growth temperature and the magnitude of growth induced uniaxial magnetic anisotropy for the compositions Y2.40Eu0.60Ga1.1Fe3.9O12 and EuEr2Ga0.7Fe4.3O12 are given. The effects of melt composition on growth temperature are shown as the relevant compositional ratios in the melt are varied. The effect of spontaneous homogeneous nucleation during film growth is shown in relation to the magnetic properties of the films. The distribution coefficient of gallium as a function of temperature is presented along with data indicating the relationship between lead incorporation and growth temperature.