Magnetic bubble device using thulium-containing garnet

Details Magnetic bubble device using thulium-containing garnet Magnetic bubble device using thulium-containing garnet

G - Physics

11

C

352/37.2

G11C 11/02 (2006.01) C04B 35/50 (2006.01) G11C 19/02 (2006.01) H01F 10/24 (2006.01)

Patent

CA 1188803

ABSTRACT MAGNETIC BUBBLE DEVICE USING THULIUM-CONTAINING GARNET Certain Tm-containing iron garnet com- positions provide layers having desirably low values of temperature coefficient of bubble collapse field and permit the fabrication of 1.2 µm diameter magnetic bubble devices. The compositions, based on Tm- substitution on dodecahedral sites of [(La,Bi),(Sm,Eu),R]3(Fe,Al,Ga)5O12, are grown by liquid phase epitaxy onto suitable substrates. Bubble devices that incorporate the layers find applications in high density information storage.

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