Calculation of a temperature-concentration phase diagram of mixed LiK 1-xRbxSO4 crystals

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作者：
Yurtseven, Hamit [1 ]
Sen, Sema [1 ]
机构：
[1] Department of Physics, Middle East Technical University, 06531 Ankara, Turkey
来源：
Japanese Journal of Applied Physics | 2008年 / 47卷 / 4 PART 1期
关键词：
We study here the temperature-concentration (T-X) phase diagram of mixed LiK1-xRbxSO4 crystals obtained using a mean field model. We expand the free energies of phases II; III; IV; and V in terms of the order parameters and calculate the phase line equations for the II-III; III-IV; and IV-V transitions in this crystal. By fitting our phase line equations to the experimental data; we obtain a T-X phase diagram of mixed LiK1-xRbxSO4 crystals. Using the phase line equations derived from our mean field model given here; the observed behaviour of some thermodynamic quantities can be predicted in the temperature and concentration ranges studied for the phases II; and V in mixed LiK 1-xRbxSO4 crystals. © 2008 The Japan Society of Applied Physics;
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页码：2217 / 2220
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