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VINOD K YADAV
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Volume 46 All articles Published: 9 February 2023 Article ID 0025
A K KUSHWAHA SHIVALI CHAUHAN S P MISHRA VINOD K YADAV R AHMED BAKHTIAR UL HAQ
With widespread physical properties from electrical to catalytic and optical to magnetic, etc., pyrochlore materials have attracted a lot more attention in the application field. In this study, we report the interatomic interactions, frequencies of Raman, and infrared phonon modes at the zone centre of mixed pyrochlore-structured compounds A$_2$GaSbO$_7$ (Y, Dy and Gd). The mechanical and elastic properties of these compounds are also reported. The obtained results show that the interatomic interaction between the atoms A–O is the strongest one as compared to the other interatomic interactions. Born’s stability conditions are found to be satisfied for all the examined compounds, showing their mechanical stability. Further analysis shows the ductile and anisotropic nature of the elastic properties for title compounds. The 3D picture of the elastic properties, such as Young’s modulus, shear modulus, linear compressibility and the Poisson ratio, is also presented and analysed. Furthermore, the obtained results are compared with previously reported theoretical and experimental results, which are found to be in good agreement where available.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Bulletin of Materials Science | News
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Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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