Optical, magnetic susceptibilities and magneto-optical properties of neodymium doped Tb3Ga5O12 with meliorated properties for near-infrared optical isolators

Wang, XiangYong; Yang, Lei; Chen, Zhe; Wang, Jun; Hong, Jialin; Wang, Yaqi; Shi, Chunjun; Zhang, Peixiong; Zhang, Lianhan; Yin, Hao

doi:10.1016/j.jallcom.2015.07.168

Cited by 26 publications

(8 citation statements)

References 23 publications

(19 reference statements)

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“…The superexchange interaction induced by codoping is assumed to be at the origin of this behavior, as previously reported in TAG and TGG co-doped crystalline materials in the literature. 9,10,12,13,15,20,21 Fitting Parameters (K and λ 0 ). From the fitting eq 2, the two parameters K and λ 0 are extracted and their evolution following the levels of substitution for the three series of samples is presented in Figure 8.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The substitution with other trivalent RE ions should then tend to decrease the Verdet constant. In the literature, assumptions to explain this phenomenon consider the influence of the crystal field, the spin−orbit coupling, and more especially the superexchange interaction 9,10,12,13,15,20,21 corresponding to the exchange of an electron via the overlapping of the orbitals between two cations separated by an anion. 22,23 The superexchange interaction and its impact on the Zeeman effect in the case of the 4f−4f ion interaction are not yet well understood due to its difficulty to be observed experimentally.…”

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

et al. 2021

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The superexchange interaction on the Faraday effect is investigated in fluorophosphate glasses following the composition (in mol %) 35NaPO3–15BaF2–0.5(100 – x)TbF3–xREF3) with the levels of substitution x = 0, 1, 2, 3, 4, 5, 10, 25, 50, and 100 where RE = Pr, Dy, and Ho. Compositional, thermal, and optical properties were characterized by electron probe micro-analysis, density, differential scanning calorimetry, UV–visible transmission, and Verdet constant measurements, respectively. A precise control of the elementary composition and substitution is reported. An increase of Verdet constant for a constant total lanthanide concentration is observed at low levels of substitution. For glass series co-doped with praseodymium, holmium, and dysprosium substitution, the maximal Verdet constant at 600 nm is respectively −84.2, −84.5, and −84.5 rad T–1 m–1, comparative to the Verdet constant of Tb singly doped glass of −81.9 rad T–1 m–1. To the best of our knowledge, it is the first report of this effect in glassy materials and the first study of Faraday effect in solid materials with such a broad range of RE substitution. The origin of this phenomenon and the link between the superexchange interaction and the Zeeman effect causing the Faraday effect are discussed.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

et al. 2021

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“…Typically, the known upconversion materials NaYF 4 : Ln 3+ (Ln = Yb / Gd / Tm and Yb / Gd / Er) are found to exhibit the paramagnetic and fine‐tuning upconversion emission behavior, 3 which is regarded as a potential multifunctional material for biochemistry applications. The multifunctional ceramics prepared by Tb 3 Ga 5 O 12 have great potential in Faraday isolators due to their excellent magneto‐optical properties 4‐6 . For example, the novel type (Tb 0.99 Ce 0.01 ) 3 Ga 5 O 12 magneto‐optical ceramics with the high Verdet constant of about −143.4 ± 3.2 rad T −1 m −1 at 633 nm can be used to realize the miniaturization of the Faraday isolator 6 .…”

Section: Introductionmentioning

confidence: 99%

“…The multifunctional ceramics prepared by Tb 3 Ga 5 O 12 have great potential in Faraday isolators due to their excellent magneto-optical properties. [4][5][6] For example, the novel type (Tb 0.99 Ce 0.01 ) 3 Ga 5 O 12 magneto-optical ceramics with the high Verdet constant of about −143.4 ± 3.2 rad T −1 m −1 at 633 nm can be used to realize the miniaturization of the Faraday isolator. 6 Multifunctional luminomagnetic property is also obtained in another commercial used phosphor Y 3 Al 5 O 12 : Ce 3+ , and the origin of ferromagnetism of these nonmagnetic oxides could be attributed solely to the defects and/or oxygen vacancies.…”

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confidence: 99%

Structure evolution and tunable magneto‐optical multifunctional property study of novel Ca₁₈K₃Sc_1‐xSm_x(PO₄)₁₄ phosphors

Zhu

et al. 2021

J Am Ceram Soc

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The optical‐magnetic multifunctional materials are of great importance owing to their potential applications in intersect discipline fields. However, the multifunctional materials with satisfied optical and magnetic property are limited, and the modulation mechanism of their magneto‐optical property related to their structure feature is ambiguous. Here, a new multifunctional solid solution phosphors Ca18K3Sc1‐xSmx(PO4)14 (0 ≤ x ≤ 1) are designed based on composition engineering and are successfully synthesized. The detailed structure feature including the structural evolution of the crystallographic parameters and local lattice environment as well as polyhedral distortion behavior are investigated through X‐ray diffraction Rietveld structure refinement for Ca18K3Sc1‐xSmx(PO4)14 in the full range (0 ≤ x ≤ 1). The photoluminescence spectra indicate that Ca18K3Sc1‐xSmx(PO4)14 (0 ≤ x ≤ 1) can emit intense orange‐red emission (IQE~42.6%) under ultraviolet light excitation ascribed to the4G5/2 ‐6H7/2 transition of Sm3+ ions. The structure modulated luminescence behavior, for example, the tunable emission ratio of I648/I565, high quenching content, and electric multipole interaction mechanism are studied. The versatile phosphors can exhibit tunable orange‐red cathodoluminescence emission along with increasing the accelerating voltage. The electron transition mechanism of the photoluminescence and cathodoluminescence behavior is further discussed through a simple schematic diagram. Moreover, Ca18K3Sc1‐xSmx(PO4)14 (0 ≤ x ≤ 1) shows a ferromagnetic behavior with controllable magnetization and coercive field. Finally, the impact of Fe ions on the photoluminescence and magnetic property of Ca18K3Sc1‐yFey(PO4)14: 0.4Sm3+ (0 ≤ y ≤ 0.05 and y = 1) phosphors are investigated. The current research can provide some ideas and mechanism to design and investigate more novel magneto‐optical muntifunctional materials for versatile applications in intersect disciplines.

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Fabrication and performance evaluation of novel transparent ceramics RE:Tb3Ga5O12 (RE = Pr, Tm, Dy) toward magneto-optical application

Snetkov

Yakovlev

et al. 2021

J Adv Ceram

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Transparent ceramics are at the heart of modern magneto-optical materials providing promising opportunities for Faraday isolators. 1.0 at% RE:Tb3Ga5O12 (rare earth (RE) = Pr, Tm, Dy) transparent ceramics were successfully prepared by air sintering and sequential HIP technique using the coprecipitated powders as the raw material. All the powders have shown to be a pure cubic terbium gallium garnet (TGG) phase and exhibit good dispersion. Additionally, a change could not be observed in particle shape with the different doped ions. After the two-step sintering, all the obtained ceramics have good optical quality, and the in-line transmittances at 1070 nm are higher than 80%. Moreover, no secondary phase can be detected from the microstructures. However, the pores which remain entrapped in the ceramics can be noted. The Verdet constant of ceramic samples is optimized by RE doping, and the Verdet constant at 632.8 nm is about −143 rad·T−1·m−1, which is about 5% higher than that of TGG ceramics. Finally, the thermo-optical properties of 1.0 at% RE:TGG transparent ceramics are compared. The annealed TGG ceramic showed the best thermo-optical properties, and the thermally induced depolarization of 1.0 at% Ce:TGG and 1.0 at% Tm:TGG was inferior to that of annealed TGG ceramic.

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Optical, magnetic susceptibilities and magneto-optical properties of neodymium doped Tb3Ga5O12 with meliorated properties for near-infrared optical isolators

Cited by 26 publications

References 23 publications

Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

Structure evolution and tunable magneto‐optical multifunctional property study of novel Ca₁₈K₃Sc_1‐xSm_x(PO₄)₁₄ phosphors

Fabrication and performance evaluation of novel transparent ceramics RE:Tb3Ga5O12 (RE = Pr, Tm, Dy) toward magneto-optical application

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Optical, magnetic susceptibilities and magneto-optical properties of neodymium doped Tb3Ga5O12 with meliorated properties for near-infrared optical isolators

Cited by 26 publications

References 23 publications

Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

Superexchange Interaction Influence on the Faraday Effect in Terbium Fluorophosphate Glasses by Co-doping with Praseodymium, Dysprosium, and Holmium

Structure evolution and tunable magneto‐optical multifunctional property study of novel Ca18K3Sc1‐xSmx(PO4)14 phosphors

Fabrication and performance evaluation of novel transparent ceramics RE:Tb3Ga5O12 (RE = Pr, Tm, Dy) toward magneto-optical application

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Structure evolution and tunable magneto‐optical multifunctional property study of novel Ca₁₈K₃Sc_1‐xSm_x(PO₄)₁₄ phosphors