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The thermodynamic behaviour of Sm3+-doped LiKSO4 crystals

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Abstract

The influence of the point defects introduced by means of Sm3+ on the thermal properties of LiKSO4 crystals was studied in the vicinity of the high-temperature phase at 708 and 940 K. The temperature dependence of the specific heat was found to vary monotonously with the Sm3+content, while the first transition temperature was unchanged. The change in the value of the specific heat was attributed to the correlation between the defect-defect interaction and the presence of internal local strain generated inside the crystal. The variation of the excess specific heat with the reduced temperature obeys the 3d Ising model.

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  1. Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt

    Y. M. Abd El-Aziz

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  1. Y. M. Abd El-Aziz
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Abd El-Aziz, Y.M. The thermodynamic behaviour of Sm3+-doped LiKSO4 crystals. Journal of Thermal Analysis 50, 873–878 (1997). https://doi.org/10.1007/BF01979217

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  • DOI: https://doi.org/10.1007/BF01979217

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