NL7312423A - Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions - Google Patents

Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions

Info

Publication number
NL7312423A
NL7312423A NL7312423A NL7312423A NL7312423A NL 7312423 A NL7312423 A NL 7312423A NL 7312423 A NL7312423 A NL 7312423A NL 7312423 A NL7312423 A NL 7312423A NL 7312423 A NL7312423 A NL 7312423A
Authority
NL
Netherlands
Prior art keywords
magneto
optical
rare earth
earth metal
opt
Prior art date
Application number
NL7312423A
Other languages
Dutch (nl)
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL7312423A priority Critical patent/NL7312423A/en
Priority to DE2349348A priority patent/DE2349348C2/en
Priority to GB4637573A priority patent/GB1439346A/en
Priority to FR7335434A priority patent/FR2202347B1/fr
Priority to CA182,662A priority patent/CA1012868A/en
Priority to JP11104273A priority patent/JPS545517B2/ja
Publication of NL7312423A publication Critical patent/NL7312423A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20—Ferrites
    • H01F10/24—Garnets
    • H01F10/245—Modifications for enhancing interaction with electromagnetic wave energy
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2675—Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B19/00—Liquid-phase epitaxial-layer growth
    • C30B19/02—Liquid-phase epitaxial-layer growth using molten solvents, e.g. flux
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/28—Complex oxides with formula A3Me5O12 wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. garnets
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/0009—Materials therefor
    • G02F1/0036—Magneto-optical materials

Abstract

Monocrystalline rare earth metal-iron garnet layer is epitaxially formed from the liquid phase on a crystallographically definite surface of a monocrystal, e.g. (Gd, Sm)13 Ga5O12, with the proviso that Bi ions are introduced into a part of the dodecahedral sites, whilst the tetrahedral sites are occupied by Fe3+. Opt., the rare earth metal ions (Su, Yb, Tm or Er) are further partly replaced by Pb2+ or Ba2+. The addition of Bi3+ enhances the magneto-optical props. of the product; materials contg. Pb have strong optical absorption. This product is suitable for use in devices based on the magneto-optical Faraday effect or the magneto-optical Kerr effect, such as light modulators, circulators, gyrators, optical display units (esp. 'bubble-display'), thermo-magnetic recorders, magneto-optical data-recovery devices, etc.
NL7312423A 1972-10-07 1973-09-10 Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions NL7312423A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL7312423A NL7312423A (en) 1973-09-10 1973-09-10 Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions
DE2349348A DE2349348C2 (en) 1972-10-07 1973-10-02 Process for growing a monocrystalline, bismuth-doped yttrium or rare earth metal-iron garnet layer
GB4637573A GB1439346A (en) 1972-10-07 1973-10-04 Method of growing crystalline layers
FR7335434A FR2202347B1 (en) 1972-10-07 1973-10-04
CA182,662A CA1012868A (en) 1972-10-07 1973-10-04 Magnetic device having a magneto-optical medium and method of manufacturing same
JP11104273A JPS545517B2 (en) 1972-10-07 1973-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7312423A NL7312423A (en) 1973-09-10 1973-09-10 Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions

Publications (1)

Publication Number Publication Date
NL7312423A true NL7312423A (en) 1975-03-12

Family

ID=19819558

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7312423A NL7312423A (en) 1972-10-07 1973-09-10 Magneto-optical rare earth metal-iron garnet - produced as thin epitaxial layer with addn of bismuth and opt. lead or barium ions

Country Status (1)

Country Link
NL (1) NL7312423A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919590A1 (en) * 1978-05-15 1979-11-22 Sperry Rand Corp MAGNETIC MIRROR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919590A1 (en) * 1978-05-15 1979-11-22 Sperry Rand Corp MAGNETIC MIRROR

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