Calculation of the Specific Heats for the II-III and II-IV Phase Transitions in NH4 I
H. Yurtseven, H. Kaya
Department of Physics, Istanbul Technical University, Maslak, Istanbul, Turkey
Calculation of the Specific Heats for the II-III and II-IV Phase Transitions in NH4 I
H. Yurtseven;H. Kaya
Department of Physics, Istanbul Technical University, Maslak, Istanbul, Turkey
关键词 ：
05.70.Fh ,
64.60.-i ,
64.70.Kb
Abstract ： This study gives our calculation for the specific heats CVI due to an Ising model using the observed Cp data for the II-III and II-IV phase transitions in NH4 I. By fitting to the Cp data we determine the values of the critical exponent for the pressure of 0.14 GPa (II-III phase transition) and for the pressures of 0.75, 1.35 and 1.97 GPa (II-IV phase transition) in NH4 I. Our exponent values are close to the predicted values of the specific heat in a three-dimensional Ising model. Our calculated CVI are in good agreement with the experimental Cp for NH4 I in most cases.
Key words ：
05.70.Fh
64.60.-i
64.70.Kb
出版日期: 2003-01-01
引用本文:
H. Yurtseven;H. Kaya. Calculation of the Specific Heats for the II-III and II-IV Phase Transitions in NH4 I[J]. 中国物理快报, 2003, 20(1): 35-38.
4 I. Chin. Phys. Lett., 2003, 20(1): 35-38.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I1/35
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