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Phonon soft modes and para- to ferro-electric phase transitions

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  • Wang, Jian-Sheng

Abstract

In this special issue of Physica A in memory of Professor Dietrich Stauffer, I first recall my impression on him while being his postdoc for a year at HLRZ. In the following scientific part, I discuss the theory of soft phonons with quartic nonlinear interactions. This is applied to the cubic crystal BaTiO3 for phase transition from para- to ferro-electric phase.

Suggested Citation

  • Wang, Jian-Sheng, 2021. "Phonon soft modes and para- to ferro-electric phase transitions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 566(C).
    • Handle: RePEc:eee:phsmap:v:566:y:2021:i:c:s0378437120309390
    DOI: 10.1016/j.physa.2020.125641
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    References listed on IDEAS

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    1. Wang, J.-S. & Wöhlert, M. & Mühlenbein, H. & Chowdhury, D., 1990. "The three-dimensional dilute Ising magnet," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 166(2), pages 173-179.
    2. Wang, Jian-Sheng, 1989. "Clusters in the three-dimensional Ising model with a magnetic field," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 161(2), pages 249-268.
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      Keywords

      Effective phonon; Soft mode; BaTiO3;
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