The growth of magnetic garnets by liquid phase epitaxy

Growth-induced birefrengence AnCj and several magnetic properties of yttrium iron garnet films substituted by Bi ions up to 1.3 atoms/f.u. have been investigated in relation to the bismuth content. The optical properties have been measured by the guided wave technique using a He-Ne 1.15 J.l m laser. The birefringence of the films has been determined from the phase mismatch between TE and 'IN modes obtained by the mode conversion efficiency. The A nCj increases monotonically as bismuth content increases. The A nCj obtained from the film grown on the SGGG substrate is not so large as is e:gected for the same bismuth content film on the GGG substrate.Therefore, it is suggested that A nf depends on the lattice constant of the substrate even in the lattice mismatch-free film. The origin of the AnCj is thought to be preferential distribution of bismuth ions on inequivalent dodecahedra I sites in garnet structure.

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“…The LPE growth was done by using the usual technique of isothermal dipping in the supercooled melt with a Bi203-PbO-B203 flux (5).…”

Section: Film Preparationmentioning

confidence: 99%

BISMUTH CONTENT DEPENDENCE OF GROWTH-INDUCED BIREFRINGENCEI IN (YBi)3(FeAl)5O12 FILMS

et al. 1987

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“…Слой, ближайший к подложке, имеет показатель преломления несколько меньше, чем у следующего слоя. Постоянные распространения без учета ани зотропии и гиротропии могут быть рассчитаны с помощью дисперсионных уравнений для четырехслойной волноводной структуры, полученных в 68 . В области значений р, не слишком близких к показателю преломления про-межуточного слоя, такая волноводная структура ведет себя как обычная трехслойная, в которой роль подложки играет промежуточный слой.…”

Section: M=0unclassified

“…За пределами этой области обычно качество пленок ухудшается 64 , в6 , 68 . Согласно 71 величина коэффициента линейного расширения для гра-натов слабо зависит от замещений в додекаэдрических узлах решетки и состав-ляет для алюминатов, галлатов и ферритов 8,6-10~6, 9,2-10~6 и 10,4-10~6 К" (78) и (79).…”

unclassified

Optical phenomena in thin-film magnetic waveguides and their technical application

Prokhorov¹,

Smolenskii²,

Ageev³

1984

Usp. Fiz. Nauk

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“…[11] The initial phase of the growth of the film is accompanied by the formation of a diffusion layer on the boundary of substrate -the solution-melt. In the main phase, the dependence of the thickness of the epitaxial film from the time of growth is linear [24]. The course of epitaxial growth from solution-melt is determined by the diffusion of garnet-forming components through the near-surface layer near the front crystallization.…”

Section: Obtaining Ferrite-garnet Filmsmentioning

confidence: 99%

Crystalline, magnetic and domain structure of epitaxial ferritegarnet films (review)

Kotsyubynsky

2017

PCSS

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The article gives a literary review of the current state of research of ferrite-garnet films. The basic crystalline and magnetic characteristics of thin films of iron-yttrium garnet are considered. We analyzed the causes of the appearance of the labyrinth, stripe and cylindrical domain structure. It is shown that the domain structure of the yttrium iron garnet strongly depends on many parameters of the films, in particular on the thickness, structural perfection of the surface and the sample as a whole. The article reviews the most common methods of synthesis, ion implantation and post-growth treatment of ferrite-garnet films.The study of dependencies between the conditions of obtaining, the chemical composition, the posttreatment conditions, the defective structure and the magnetic properties of ferrite-garnet films have great practical value for obtaining films with predetermined properties.

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The growth of magnetic garnets by liquid phase epitaxy

Cited by 213 publications

References 19 publications

BISMUTH CONTENT DEPENDENCE OF GROWTH-INDUCED BIREFRINGENCEI IN (YBi)3(FeAl)5O12 FILMS

BISMUTH CONTENT DEPENDENCE OF GROWTH-INDUCED BIREFRINGENCEI IN (YBi)3(FeAl)5O12 FILMS

Optical phenomena in thin-film magnetic waveguides and their technical application

Crystalline, magnetic and domain structure of epitaxial ferritegarnet films (review)

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