Specific Heat of NH4Cl and NH4BrxCl1-x Crystals Close to the Ferro-Ordered Phase

被引：0
|
作者：
Yurtseven, Hamit [1 ]
Yanik, Askin [2 ]
机构：
[1] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
[2] Istanbul Tech Univ, Dept Phys, TR-80626 Istanbul, Turkey
来源：
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN | 2009年 / 31卷 / 02期
关键词：
WEAKLY FIRST-ORDER; AMMONIUM HALIDES; SINGLE-CRYSTALS; TRANSITIONS; DIAGRAM; SYSTEM; NH4BR; CAPACITY;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study gives calculation of the specific heat C-VI of NH4Cl and NH4BrxCl1-x under the Ising model for the transition between the disordered (D) and ferro-ordered O(F) phases in these crystalline systems. Our C-VI values which we calculated for x = 0 and x = 0.04, agree both below and above T-c with the observed C-p data from the literature. Our value of a congruent to 0.1 (T < T-c and T > T-c) is in good agreement with the predicted value of 1/8 (0.125) of a 3D Ising model.
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页码：207 / 213
页数：7
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