Bismuth‐Substituted Iron Garnet Films for Magnetophotonics: Part A – Fabrication Methods and Microstructure Property Study

Voronov, Andrey A.; Михайлова, Т. В.; Borovkova, Olga V.; Shaposhnikov, A. N.; Berzhansky, V. N.; Belotelov, V. I.

doi:10.1002/9783527344987.ch4

Cited by 3 publications

(3 citation statements)

References 44 publications

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“…Bi-substituted garnet-type materials' MO characteristics are entirely composition-dependent, making them also application-specific. Bi-substituted iron garnets and composites have been synthesized and characterized using numerous research projects to acquire the optimum material properties suited for a variety of applications, including microwave-range, communication band-wavelength, and integrated photonics applications [43][44][45][46][47]. , obtained hysteresis loops from an optimally annealed all-garnet multilayer structure prepared on a GGG (111) substrate with an external magnetic field applied both in perpendicular direction (out-of-plane, green color curve) and parallel (in-plane, red color curve) with respect to the film plane of the multilayer structure (c), and an unconventional magnetic hysteresis loop measured in a modified all-garnet multilayer structure [12,31,32,34].…”

Section: Resultsmentioning

confidence: 99%

Bi-Substituted Ferrite Garnet Type Magneto-Optic Materials Studied at ESRI Nano-Fabrication Laboratories, ECU, Australia

Nur-E-Alam

Vasiliev²,

Alameh³

2022

Coatings

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Since 2007, at the Electron Science Research Institute (ESRI) nano-fabrication laboratories, Edith Cowan University, Australia, we have devoted research efforts to the synthesis and characterization of bismuth-containing ferrite-garnet-type thin-film magneto-optic (MO) materials of different compositions. We report on the growth and characteristics of radio frequency (RF) magnetron sputtered bismuth-substituted iron-garnet thin films. We study the process parameters associated with the RF magnetron sputter deposition technique and investigate the results of optimizing process parameters. To achieve the best MO properties, we employ a few unique techniques, such as co-sputtered nanocomposite films and all-garnet multilayer structures, as well as the application of oxygen plasma treatment to amorphous garnet layers immediately following the deposition process. We demonstrated a remarkable enhancement in the MO properties of Bi-containing ferrite-type garnet thin-film materials, including record-high MO figures of merit and improved conventional and unconventional hysteresis loops of Faraday rotation. Previously unpublished research results on the forward-looking applications of magnetic garnet coatings applied to microparticles of advanced luminescent materials are reported. In the context of developing the next-generation ultra-fast optoelectronic devices, such as light intensity switches and modulators, high-speed flat panel displays, and high-sensitivity sensors, it is important to consider the desirable optical, magnetic, and magneto-optic properties that are found in highly bismuth-substituted iron garnet thin-film materials of various composition types.

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Section: Resultsmentioning

confidence: 99%

Bi-Substituted Ferrite Garnet Type Magneto-Optic Materials Studied at ESRI Nano-Fabrication Laboratories, ECU, Australia

Nur-E-Alam

Vasiliev²,

Alameh³

2022

Coatings

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“…Rare-earth iron garnets are an important class of magneto-optical materials that are widely applied in photonics and spintronics for developing light modulators, circulators, , optical isolators, , magnetophotonic crystals, magnetic field sensors, , magnetic memory, magnetic data storage devices, and nonreciprocal elements of waveguide photonics . Among various garnets, Bi/YIG is one of the most extensively studied and widely used materials for the abovementioned applications due to a high magneto-optical figure of merit. , Conventional methods of Bi/YIG synthesis include liquid-phase epitaxy, , pulsed laser deposition, , sputtering, , sol–gel, and metal–organic decomposition (MOD) . The latter is characterized by simplicity, flexibility, low cost, and scalability of the process.…”

Section: Introductionmentioning

confidence: 99%

“…11 Among various garnets, Bi/YIG is one of the most extensively studied and widely used materials for the abovementioned applications due to a high magneto-optical figure of merit. 12,13 Conventional methods of Bi/YIG synthesis include liquid-phase epitaxy, 14,15 pulsed laser deposition, 16,17 sputtering, 18,19 sol− gel, 20 and metal−organic decomposition (MOD). 21 The latter is characterized by simplicity, flexibility, low cost, and scalability of the process.…”

Section: ■ Introductionmentioning

confidence: 99%

Crystallization of Bismuth-Substituted Yttrium Iron Garnet under Low-Energy High-Repetition Rate Femtosecond Laser Pulses

Sgibnev

Shelaev

Kulikova

et al. 2021

Crystal Growth & Design

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Femtosecond laser crystallization of magneto-optical bismuthsubstituted yttrium iron garnet (Bi/YIG) from an oxide film synthesized by the metal−organic decomposition method was demonstrated and studied. The maximum of the specific Faraday rotation of Bi/YIG films crystallized by laser pulses and that crystallized by conventional thermal annealing was shown to be 11 deg/μm at 515 nm for both types. In cases where Bi/YIG is a functional layer of a multilayered structure on a substrate, the proposed approach allows us to overcome limitations related to overheating of the structure and the substrate occurring during conventional high-temperature annealing.

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Bridging Performance Gaps: Exploring New Classes of Materials for Future Spintronics Technological Challenges

Al‐Qatatsheh,

Juodkazis,

Hameed

2023

Adv Quantum Tech

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Technological challenges, such as insufficient computation power, inefficient data storage, and unsafe communication, may not be tackled by currently utilized semiconductors or superconductors, which are still far from meeting the requirements of quantum‐age applications. Spintronics, focused on electron transport phenomena dependent on spin, holds promise as an advanced technology. Nevertheless, most recent quantum technologies adopted by leading businesses and start‐ups rely heavily on others, and there is a race to increase the number of qubits to gain a computational advantage. Therefore, it is crucial to consider new classes of materials instead of the conventional ones. Developing high‐performance organic spintronics based on new classes of materials, namely, ionic liquids (ILs), liquid and soft crystals, and macroradicals, can support high‐speed and low‐power computing applications, offering higher spin‐relaxation times in the order of microsecond at room temperature. This perspective discusses the key challenges of the currently utilized inorganic semiconductors, small molecules, and π‐conjugated polymers. It also discusses how the new classes of organic spintronics can bridge these performance gaps.

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Bismuth‐Substituted Iron Garnet Films for Magnetophotonics: Part A – Fabrication Methods and Microstructure Property Study

Cited by 3 publications

References 44 publications

Bi-Substituted Ferrite Garnet Type Magneto-Optic Materials Studied at ESRI Nano-Fabrication Laboratories, ECU, Australia

Bi-Substituted Ferrite Garnet Type Magneto-Optic Materials Studied at ESRI Nano-Fabrication Laboratories, ECU, Australia

Crystallization of Bismuth-Substituted Yttrium Iron Garnet under Low-Energy High-Repetition Rate Femtosecond Laser Pulses

Bridging Performance Gaps: Exploring New Classes of Materials for Future Spintronics Technological Challenges

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