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Controlled Growth Anisotropy in Garnet Bubble Film

IP.com Disclosure Number: IPCOM000080874D
Original Publication Date: 1974-Feb-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Cronemeyer, DC: AUTHOR [+3]

Abstract

As garnets are cubic, uniaxial anisotropy must be induced in order for stable magnetic bubbles to exist.

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Controlled Growth Anisotropy in Garnet Bubble Film

As garnets are cubic, uniaxial anisotropy must be induced in order for stable magnetic bubbles to exist.

It has been shown previously that the growth anisotropy in epitaxial garnet films can be controlled by regulating the substrate rotation rate during film growth, when growth is by a liquid phase epitaxy technique on a substrate in a horizontal plane undergoing axial rotation.

It has now been shown that uniaxial anisotropy (K(u)) can be changed by a multiplicative factor of more than two, by increasing the rotation rate. Illustratively, by increasing the rotation rate from 36 rpm to 321 rpm for garnet films grown at 980 degrees C, an increase in K(u) from 5700 erg/cm/3/ to 9500 erg/cm/3/ resulted.

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