Articles written in Bulletin of Materials Science

    • Landau mean-field model with the cubic term for the $\alpha–\beta$ transition in quartz


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      Thermodynamic quantities are calculated as a function of temperature by using Landau mean-field model for the $\alpha–\beta$ transition in quartz. By expanding the Gibbs free energy in terms of the order parameter ($Q$) with the cubic term ($Q_3$), the temperature dependence of the relevant thermodynamic quantities are predicted using the heat capacity ($C_{\rm P}$), which is fitted to the experimental data from the literature for the $\alpha–\beta$ transition in quartz. Our results indicate that the Landau mean-field model is adequate to describe the first-order $\alpha–\beta$ transition in quartz.

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      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

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