Epitaxial iron garnet films with submicron diameter magnetic bubbles

Giess, E. A.; Guerci, C.F.; Kuptsis, J. D.; Hu, H. L.

doi:10.1016/0025-5408(73)90111-6

Cited by 22 publications

(2 citation statements)

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“…The discovery that some flux-grown magnetic garnet platelets 'possessed sufficient uniaxial anisotropy to support bubble domains (1,2) has led to a search for garnet compositions suitable for device use. A large number of magnetic garnet compositions have been suggested for use in bubble domain devices (3)(4)(5)(6)(7)(8)(9)(10)(11). Many of these compositions have served well as vehicles for circuit design and prototype device construction, but as the bubble domain memory comes closer to being a practical device for use in a variety of environments, its stability toward temperature changes becomes a major consideration.…”

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confidence: 99%

Preparation and Properties of Magnetic Garnet Films Containing Divalent and Tetravalent Ions

Blank¹,

Nielsen²,

Biolsi³

1976

J. Electrochem. Soc.

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The relevant phase equilibrium data necessary to grow garnet films containing divalent and tetravalent ions by liquid phase epitaxy are presented. The effects of melt composition on film magnetic properties and film composition are presented as is the influence of growth kinetics on the film magnetic parameters. Work on the false(Y,normalSm,normalCa)3false(normalGe,normalFe)5O12 system is stressed. A coupled distribution coefficient is defined which adequately describes the Ca2+‐Ge4+substitution. The effect of melt depletion on magnetic properties is discussed and data presented to indicate the magnitude of the effect observed in the false(Y,normalSm,normalCa)3false(normalGe,normalFe)5O12 system. An example of the propagation characteristics observed in the false(Y,normalSm,normalCa)3false(normalGe,normalFe)5O12 system is also shown. A technique for controlling the temperature dependence of the collapse field in LPE films is presented. The use of Lu3+ as both a dodecahedral and octahedral substituent is shown to lead to a system flexible enough to meet most of the present device requirements.

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confidence: 99%

Preparation and Properties of Magnetic Garnet Films Containing Divalent and Tetravalent Ions

Blank¹,

Nielsen²,

Biolsi³

1976

J. Electrochem. Soc.

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“…additions to SFM's available, taken from Ref.average size of the ions now places the composition in a new structure field and is not the result of any of the terms in Eq (5)…”

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confidence: 99%

Rational Molecular Engineering of Ceramic Materials

Roy

1977

Journal of the American Ceramic Society

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Most of the advances in modern ceramics have been based on the development of a new material.A rational approach to the design and execution of such innovative syntheses can be made more scientific and less serendipitous. The understanding of molecular architecture and the principles of structure building can only be based on the science of crystal chemistry and solidstate thermodynamics. This review presents a summary of the principles and state-of-the-art empirical data in relevant crystal chemistry and the correlates found in phaseequilibrium diagrams. It dealsexplicitly with the role of metastable equilibrium in the formation and use of technological materials. It also summarizes the major classes of experimental facilities needed for sophisticated molecular engineering. Several examples are presented as successful paradigms of rational molecular engineerin covering different size ranges of creative architecture proposed as being based principally on 2-(or multi-) phase materials, andor on noncrystalline phases based on the entire composition range of ceramics, and on combinations of ceramics with metals and, possibly, polymers.from 10 f to 10 pm. Likely future developments in this areaare

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