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<p><strong>Raman and Structural Characterization of Spinel Compound Zn<sub>8/5</sub>Al<sub>4/15</sub>TiO<sub>4</sub></strong></p>

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Title Statement <p><strong>Raman and Structural Characterization of Spinel Compound Zn<sub>8/5</sub>Al<sub>4/15</sub>TiO<sub>4</sub></strong></p>
 
Added Entry - Uncontrolled Name Singh, Santosh Kumar; Govt. Tilak College Katni (MP) India
 
Uncontrolled Index Term Condensed Matter Physics
X-ray Diffraction; Rietveld refinement; Spinel structure; Raman spectroscopy
 
Summary, etc. <p style="text-align: justify;">Microwave dielectric materials have been attracted enormous attention for their application in microwave communication. A new microwave dielectric material with composition Zn<sub>8/5</sub>Al<sub>4/15</sub>TiO<sub>4</sub> was synthesized by conventional solid-state reaction method. The structure of Zn<sub>8/5</sub>Al<sub>4/15</sub>TiO<sub>4</sub> was refined with the cubic P4<sub>3</sub>32 space group (number of formula unit per unit cell, Z = 4). The Rietveld refinement study revealed the theoretical density ρ = 4.80 g/cm<sup>3</sup> and lattice parameter a = 8.405 Å. This compound was crystallized in cubic spinel structure and 1:3 ordering was observed on the octahedral sites. Raman spectrum of the compound was collected at room temperature. Theoretical Factor group analysis for this compound predicts 40 Raman modes and 22 IR modes. However, experimentally 13 vibrational modes have been observed in the Raman spectrum which can be separated into internal TiO<sub>6</sub> vibration and external rotation and translation TiO<sub>6</sub> modes. Raman modes in the range of 500-800 cm<sup>-1</sup> are assigned to internal vibrational modes.</p>
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2023-04-11 16:24:50
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/69859
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 61, ##issue.no## 4 (2023): Indian Journal of Pure & Applied Physics
 
Language Note en
 
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