Garnet films for storage applications: growth and properties

Based on the measurements of the domain structure only (domain period, p, t hickness, h, bubble collapse field, H-col, and field at which bubbles run-o ut, H-el,) a graphical method to determine the intrinsic length, l, and the saturation magnetization, 4 pi M-s, of magnetic bubble garnet films is des cribed. The films of (YYbEuGdFe), (YLaTmGaFe) and (EuErFeGa) garnets are gr own by the liquid-phase epitaxy technique (LPE) which consists of dipping a non-magnetic Gd3Ga5O12 garnet substrate into an isothermal supersaturate s olution of the component garnet oxides in a PbO-B2O3 solvent. Typical growt h temperatures are similar to 950 degrees C and growth rates are similar to 1 mu m/min. (C) 1999 Published by Elsevier Science B.V. All rights reserve d.