Abstract: A laminated, integral structure that forms a bubble memory plane for the generation, storage and transfer of single wall domains, bubble domains or bubbles is disclosed. The memory plane is formed of a non-magnetic gadolinium gallium garnet (GGG) support member; formed upon the support member is a magnetizable layer that is capable of sustaining stripe domains; formed upon the stripe domain layer is a non-magnetic gadolinium gallium garnet (GGG) spacer layer; and, formed upon the spacer layer is a magnetizable layer in which single wall domains or bubbles are capable of being generated, sustained and transferred from one position to another along a planar dimension of the bubble domain layer.

Abstract: An apparatus for and a method of moving stripe domains in a direction transverse their length is disclosed. The apparatus includes a layer of magnetizable material in which stripe domains are capable of being generated, sustained and moved. Formed upon the magnetizable layer are two parallel contiguous disk files, each of which is formed of a plurality of linearly aligned similar contiguous Bicore disks. Each Bicore disk is comprised of a disk of a relatively soft magnetizable material, e.g., Permalloy, and a superposed disk of a relatively hard magnetizable material, e.g., Cobalt, sandwiching an insulative layer, e.g., silicon dioxide, SiO.sub.2, therebetween.

Abstract: Disclosed is an apparatus for and a method of propagating bubble domains along fixed guidance channel forming stripe domains by capturing them in moveable stripe domains and then moving the capturing moveable stripe domains. The memory plane comprises a non-magnetic Gadolinium Gallium Garnet (GGG) layer which is a supporting substrate upon which are successively formed by the liquid phase epitaxy (LPE) method: a first stripe domain layer, a first non-magnetic spacer layer; a bubble domain layer; a second non-magnetic spacer layer; a second stripe domain layer; and a third non-magnetic spacer layer upon which is formed the necessary propagation circuitry.

Abstract: An apparatus for and a method of propagating bubble domains is disclosed. The apparatus includes a memory plane that is comprised of a non-magnetic support member upon which are formed a bubble domain layer and at least one stripe domain layer. The stripe domain layer has a set of relatively-narrow, periodic, potential well generating fixed stripe domains provided therein while the bubble domain layer has a set of relatively-wide, parallel, potential well generating fixed guidance channels provided therein that are oriented orthogonal to the parallel set of stripe domains in the stripe domain layer. Bubble domains are concurrently entered, in parallel, at one end of the memory plane in selected ones of the guidance channels. A periodic amplitude modulated bias field of frequency F propagates each of the bubble domains along the associated guidance channel from adjacent to next downstream adjacent stripe domain and thus through the memory plane at the frequency F.