Publication
Materials Research Bulletin
Paper

Gallium concentration effects on magnetic bubble films of EuTm2(Fe,Ga)5O112 garnet grown by liquid phase epitaxy

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Abstract

By varying the Ga concentrations x of EuTm2Fe5-xGaxO12 from x = 0 to about 0.8, thin magnetic films supporting stable bubbles with diameters from 0.5 to about 8μm, respectively, are deposited epitaxially onto gadolinium gallium garnet substrates oriented (111). For low values of x, the Ga segregation coefficient is about 2 and it decreases slightly as x increases. Thus, films contain roughly twice as much Ga as the LPE fluxed melts in which they grow. Both the characteristic length and magnetic bubble stability factor (Q) increase rapidly with x and, to a lesser degree, so does the uniaxial anisotropy field HA while both 4πM and the uniaxial anisotropy Ku decrease. © 1975.

Date

01 Jan 1975

Publication

Materials Research Bulletin

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