| Autor: |
Jeyasingh, T., Saji, S. K., Kavitha, V. T., Wariar, P. R. S., Shekhawat, Manoj Singh, Bhardwaj, Sudhir, Suthar, Bhuvneshwer |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2018, Vol. 1953 Issue 1, pN.PAG-N.PAG, 5p |
| Abstrakt: |
Nanocrystalline pyrochlore material Dysprosium Titanate (Dy2Ti2O7) has been synthesized through a single step optimized combustion route. The phase purity and phase formation of the combustion product has been characterized using X-Ray diffraction analysis (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR) analysis. X-Ray diffraction analysis (XRD) reveal that Dy2Ti2O7 is highly crystalline in nature with cubic structure in the Fd3m space group. The microstructures and average particle size of the prepared nanopowder were examined by High Resolution Transmission Electron Microscopy (HR-TEM). The optical band gap of the Dy2Ti2O7 nanoparticles is determined from the absorption spectrum, was attributed to direct allowed transitions through optical band gap of 3.98 eV. The frequency dependent dielectric measurements have been carried out on the sintered pellet in the frequency range 1 Hz-10 MHz. The measured value of dielectric constant (ℇ’) was ∼ 43 and loss tangent (tan δ) was 4×10−3 at 1 MHz, at room temperature. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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