Influence of lanthanum on structural and magneto-optic properties of diamagnetic glasses of the TeO<sub>2</sub>–WO<sub>3</sub>–PbO system

Golis, Edmund; Reben, M.; Burtan-Gwizdała, Bożena; Filipecki, J.; Cisowski, J.; Pawlik, P.

doi:10.1039/c5ra16674h

Cited by 24 publications

(14 citation statements)

References 30 publications

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“…The uptake of Er 3+ ions into the glass increases the value of the paramagnetic susceptibility. The results confirm the improvement of magneto-optical properties of the examined glasses under the effect of doping with erbium ions, the reported values of the Faraday rotation angles being comparable with the ones observed in lanthanum-type tellurium glasses [2].…”

Section: Introductionsupporting

confidence: 86%

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

et al. 2020

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This work investigates the structural, magnetic and magneto-optical properties of a new zinc phosphate-tellurite glass belonging to the 45ZnO-10Al2O3-40P2O5-5TeO2 system. The glass was prepared by a wet method of processing the starting reagents followed by suitable melting–stirring–quenching–annealing steps. Specific parameters such as density, average molecular mass, molar volume, oxygen packaging density, refractive index, molar refractivity, electronic polarizability, reflection loss, optical transmission, band gap and optical basicity have been reported together with thermal, magnetic and magneto-optical characteristics. Absorption bands appear in the blue and red visible region, while over 600 nm the glass becomes more transparent. FTIR and Raman spectra evidenced phosphate-tellurite vibration modes proving the P2O5 and TeO2 network forming role. Magnetic measurements reveal the diamagnetic character of the Te-doped glass with an additional weak ferromagnetic signal, specific to diluted ferromagnetic oxides. Positive Faraday rotation angle with monotonous decreasing value at increasing wavelength was evidenced from magneto-optical measurements. The final product is a composite material comprising of a non-crystalline vitreous phase and Te-based nanoclusters accompanied by oxygen vacancies. The metallic-like Te colloids are responsible for the dark reddish color of the glass whereas the accompanying oxygen vacancies might be responsible for the weak ferromagnetic signal persisting up to room temperature.

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Section: Introductionsupporting

confidence: 86%

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

et al. 2020

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“…TeO 2 glasses can be classified into either Te‐rich glasses with around 50 mol% TeO 2 in binary and ternary systems with application in lasers, optical fibers, amplifiers, 1‐11 or into low‐Te glasses where TeO 2 is only added in low amounts as dopant 3,12‐15 . TeO 2 glasses are promising low phonon hosts for rare‐earth elements 1,16‐23 or present luminescence properties themselves 2 . Having a broadband NIR emission and a lifetime of tens of microseconds, Te glasses of different compositions (zinc oxide, phosphate, vanadate, borate, etc) may be promising material for fabricating broadband optical fibers, amplifiers, windows, lenses or tunable lasers in visible (Vis) 3‐10,24‐27 or in infrared (IR) domain 11,24,28 …”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a titanium phosphate‐tellurite glass for Faraday rotators

et al. 2020

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This work is focused on investigation of thermal, structural, optical, magnetic, and magneto‐optical properties of novel titanium phosphate‐tellurite glass applied as Faraday rotators. The glass belonging to the system 35Li2O–10Al2O3–5TiO2–45P2O5–5TeO2 was prepared by a nonconventional wet route of raw materials processing, followed by melting‐quenching‐annealing steps. Some important physical properties of the investigated glass have been measured and calculated, providing knowledge related to glass compactness, electronic structure, glass forming capability, etc. XRD analysis evidenced an amorphous network structure of the investigated glass. The optical absorption in the Vis domain is mainly due to Ti3+ ions and Te2 clusters formed during the glass melting process. A relatively low optical absorption is noticed over 600 nm that activates a significant Faraday magneto‐optical effect. Photoluminescence bands in the blue, red, and infrared domains are observed, caused by Te2 clusters formed during the glass melting process. The magnetization in dependency on applied magnetic field reveals a complex behavior of the glass, depending on temperature. Thus, it is found a ferromagnetic behavior up to 2000 Oe, a paramagnetic component up to 40 000 Oe, followed by a diamagnetic one over 40 000 Oe. Faraday rotation angle and Verdet constant values in the visible domain are correlated with the reduced TeO2 content of the glass.

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“…Interesting results involving the improvement of the magneto-optical properties in tellurite glasses by doping them with lanthanum La 3+ have been presented in papers. 10,16 An attempt to obtain similar results for a different tellurite glass matrix with the use of Nd 3+ ions has been made in this paper. The usefulness of this study results from the fact that the glasses doped with rare earth elements have become competitive in their application, in comparison to other materials, due to their low price and the simplicity of the processes of manufacturing and moulding.…”

Section: Introductionmentioning

confidence: 90%

The effect of Nd³⁺impurities on the magneto-optical properties of TeO₂–P₂O₅–ZnO–LiNbO₃tellurite glass

Golis

2016

RSC Adv.

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Influence of lanthanum on structural and magneto-optic properties of diamagnetic glasses of the TeO₂–WO₃–PbO system

Abstract: This paper is focused on the design, fabrication and characterization of tellurite glass of composition TeO2–WO3–PbO in terms of La2O3addition.

Cited by 24 publications

References 30 publications

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

Synthesis and characterization of a titanium phosphate‐tellurite glass for Faraday rotators

The effect of Nd³⁺impurities on the magneto-optical properties of TeO₂–P₂O₅–ZnO–LiNbO₃tellurite glass

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Influence of lanthanum on structural and magneto-optic properties of diamagnetic glasses of the TeO2–WO3–PbO system

Abstract: This paper is focused on the design, fabrication and characterization of tellurite glass of composition TeO2–WO3–PbO in terms of La2O3addition.

Cited by 24 publications

References 30 publications

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

A New Zinc Phosphate-Tellurite Glass for Magneto-Optical Applications

Synthesis and characterization of a titanium phosphate‐tellurite glass for Faraday rotators

The effect of Nd3+impurities on the magneto-optical properties of TeO2–P2O5–ZnO–LiNbO3tellurite glass

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Product

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Influence of lanthanum on structural and magneto-optic properties of diamagnetic glasses of the TeO₂–WO₃–PbO system

The effect of Nd³⁺impurities on the magneto-optical properties of TeO₂–P₂O₅–ZnO–LiNbO₃tellurite glass