Anomalous Phase Transitions in LiCsSO4 in the Compressible hcp Ising Model |
| A. Lehmann-Szweykowska, M. Kurzyński, R. Wojciechowski, M. Wiesner and B. Mróz
Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland |
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| Structural low-temperature phase transformations in LiCsSO4 are analysed in a newly tailored simple model of the static soliton in the periodically modulated phases of the one-dimensional compressible Ising model. It is shown that the original hcp symmetry is crucial for understanding of the anomalous temperature-dependence of the Brillouin shift. |
| DOI: 10.12693/APhysPolA.121.1108 PACS numbers: 78.35.+c, 75.10.Hk, 62.20.D- |