| 电子极化对氟化钙离子晶体的弹性系数、压电系数和介电常数的影响 |
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| 引用本文： | 孙家锺,蒋栋成,施安顿,周木易.电子极化对氟化钙离子晶体的弹性系数、压电系数和介电常数的影响[J].物理学报,1965,21(2):402-413. |
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| 作者姓名： | 孙家锺 蒋栋成 施安顿 周木易 |
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| 作者单位： | 吉林大学;吉林大学;中国科学院;吉林大学 |
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| 摘 要： | 本文用黄昆的方法计算了电子极化对氟化钙离子晶体的弹性系数c12-c44的偏离的贡献,以及对静电与光学介电常数差的影响,其结果在数量级和方向上与实验结果符合。
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| 收稿时间： | 9/5/1962 12:00:00 AM |
THE CONTRIBUTION OF THE ELECTRONIC POLARIZATION TO THE ELASTIC AND PIEZOELECTRIC CONSTANTS AND THE DIELECTRIC TENSOR FOR THE CALCIUM FLUORIDE CRYSTAL |
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| SUN CHIA-CHUNG,CHIANG TUNG-CHEN,CHOU MO-YI and SHI AN-TON.THE CONTRIBUTION OF THE ELECTRONIC POLARIZATION TO THE ELASTIC AND PIEZOELECTRIC CONSTANTS AND THE DIELECTRIC TENSOR FOR THE CALCIUM FLUORIDE CRYSTAL[J].Acta Physica Sinica,1965,21(2):402-413. |
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| Authors: | SUN CHIA-CHUNG CHIANG TUNG-CHEN CHOU MO-YI and SHI AN-TON |
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| Abstract: | The deviation from Cauchy's relation and the difference between the electrostaticand the optical dielectric constant for calcium fluoride are calculated respectively by usingKun Huang's method. The results of neglecting the electronic polarization in the ionic crystal are given as follows: c12-c44=0.58×1011 dyne/cm2, ε- ε0 = 3.53. The results of considering the electronic polarization in the ionic crystal are c12-c44=3.97×1011 dyne/cm2,ε - ε0 = 10.1. The experimental values are c12-c44 = 2.01 × 1011 dyne/cm2,ε - ε0 = 6.44. |
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