EPR study of the ferroelastic phase transition in CsLiSO4 |
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| Authors: | PC Morais GM Ribeiro AS Chaves |
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| Institution: | Departamento de Física, Universidade de Brasília 70.910 Brasília, DF-Brasil;Departamento de Física, Universidade Federal de Minas Gerais 30.000 Belo Horizonte, MG-Brasil |
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| Abstract: | EPR spectra of SO-3 ion-radical in X-ray irradiated CsLiSO4 single crystals were used for the study of the ferroelastic phase transition at Tc = 203.0 K. The splitting (ΔH) of the SO3 line in the low-temperature ferroelastic phase has been interpreted as proportional to the square of the order parameter. The splitting shows the temperature dependence ΔH ∞ (Tc ? T) 1.01± 0.01 |
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