Growth and Faraday rotation characteristics of Tb3−xNdxGa5O12 single crystal

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

doi:10.1016/j.optmat.2015.04.044

Cited by 14 publications

(8 citation statements)

References 21 publications

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“…The only modified parameters are the substitution value and the nature of the substituent. The superexchange interaction induced by co-doping is assumed to be at the origin of this behavior, as previously reported in TAG and TGG co-doped crystalline materials in the literature. ,,,,,, …”

Section: Resultsmentioning

confidence: 69%

“…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%

“…Indeed, in 2012, researchers reported a (Tb 1– x R x ) 3 Al 5 O 12 (R = Y, Ce) transparent ceramic with a Verdet constant of −199.55 rad T –1 m –1 at 632 nm for the Ce 3+ -doped Tb 3 Al 5 O 12 , representing a significant increase of 16% compared with the Tb 3 Al 5 O 12 material . Later, in 2015 and 2016, researchers investigated the magneto-optical properties of TGG single crystals co-doped with different rare-earth (RE) trivalent ions and determined the Verdet constant measured at 632 nm of Nd:TGG (−145 rad T –1 m –1 ), Er:TGG (−145.3 rad T –1 m –1 ), Ce:TGG (−157.3 rad T –1 m –1 ), Dy:TGG (−178.6 rad T –1 m –1 ), Tm:TGG (−178.6 rad T –1 m –1 ), Pr:TGG (−200 rad T –1 m –1 ), and Ho:TGG (−214.9 rad T –1 m –1 ). − All these co-doped TGG single crystals have a higher Verdet constant in comparison with the TGG single crystal (−134 rad T –1 m –1 at 632 nm). In 2018, a series of TAG transparent ceramics co-doped with Ho, Tm, and Pr are also explored with Verdet constants reported at 632 nm of −183, −189.5, and −189.8 rad T –1 m –1 , respectively. − This unexpected behavior is attributed to the intrinsic properties of the co-doping elements used and associated with the Tb 3+ ions .…”

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: Resultsmentioning

confidence: 69%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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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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Tunable magnetic and fluorescent properties of Tb3Ga5O12 nanoparticles doped with Er3+, Yb3+, and Sc3+

et al. 2019

Journal of Alloys and Compounds

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Growth and Faraday rotation characteristics of Tb3−xNdxGa5O12 single crystal

Cited by 14 publications

References 21 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

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

Tunable magnetic and fluorescent properties of Tb3Ga5O12 nanoparticles doped with Er3+, Yb3+, and Sc3+

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