| SrCl2:Co++EPR谱电场效应的理论解释 |
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| 引用本文： | 白贵儒,徐长青.SrCl2:Co++EPR谱电场效应的理论解释[J].物理学报,1988,37(1):136-140. |
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| 作者姓名： | 白贵儒 徐长青 |
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| 作者单位： | 中国科学技术大学凝聚态理论研究室 |
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| 摘 要： | 本文从理论上研究了111]方向电场对SrCl2:Co++的EPR谱的影响。结果表明:外电场使晶格发生畸变而偏离原来的Oh对称,成为C3v。由此圆满地从理论上解释了零场分裂因子D随电场强度E线性变化的实验规律,并从理论上预言了晶格在平行电场方向的变化率为α=—8×10-5α0mm/kV,在垂直电场方向的变化率β=1.66×10-4α0关键词：
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| 收稿时间： | 1986-12-11 |
A THEORETIC EXPLANATION OF ELECTRIC HELD EFFECT OF EPR SPECTRA OF SrCl2:Co++ |
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| BAI GUI-RU and XU CHANG-QING.A THEORETIC EXPLANATION OF ELECTRIC HELD EFFECT OF EPR SPECTRA OF SrCl2:Co++[J].Acta Physica Sinica,1988,37(1):136-140. |
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| Authors: | BAI GUI-RU and XU CHANG-QING |
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| Abstract: | The effect of electric field applied along 111] on EPR spectra of SrCl2:Co++ has been investigated. The result shows that electric field causes the crystal lattice to distort and deviate from its original cubic Oh symmetry to C3v symmetry. We have successfully explained the experimental rule that zero field splitting parameter D depends linearly upon electric field strength E and also predicted the coefficients of the change of the structure parameters a = - 8×10-5 a0 mm/kV (parallel to the electric field), β= 1.66×10-4 a0 mm/kV (perpendicular to the electric field). |
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