| BaCl2中Eu2+的电子自旋共振研究 |
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| 引用本文： | 侯碧辉,施朝淑,韩世莹,夏上达,陆肖璞.BaCl2中Eu2+的电子自旋共振研究[J].物理学报,1991,40(6):1011-1016. |
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| 作者姓名： | 侯碧辉 施朝淑 韩世莹 夏上达 陆肖璞 |
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| 作者单位： | (1)南京大学固体微结构物理实验室,南京,210008; (2)中国科学技术大学物理系,合肥,230026; (3)中国科学技术大学物理系,合肥,230026;南京大学固体微结构物理实验室,南京,210008 |
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| 摘 要： | 制备和用X射线分析BaCl2:Eu微晶的结构,并测量它的电子自旋共振(ESR)谱,结构分析和ESR谱都表明,替代Ba2+的Eu2+离子是处在轴对称的正交晶场中;并用抽对称的自旋哈密顿量和晶场哈密顿量对ESR实验数据进行拟合,求得在正交对称的BaCl2中的Eu2+的自旋哈密顿参数;还发现Eu替代Ba2+的掺杂浓度的饱和值为0.34mol％。
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| 关 键 词： | BaCl2 Eu^2＋ 电子自旋共振 |
| 收稿时间： | 9/3/1990 12:00:00 AM |
ELECTRON SPIN RESONANCE INVESTIGATION OF Eu2+ IN BaCl2 |
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| HOU BI-HUT,SHI CHAO-SHU,HAN SHI-YING,XIA SHANG-DA and LU XIAO-PU.ELECTRON SPIN RESONANCE INVESTIGATION OF Eu2+ IN BaCl2[J].Acta Physica Sinica,1991,40(6):1011-1016. |
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| Authors: | HOU BI-HUT SHI CHAO-SHU HAN SHI-YING XIA SHANG-DA and LU XIAO-PU |
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| Abstract: | The ESR spectra of BaCl2: Eu powder showed that Eu2+ ion substituting the ion Ba2+ is situated in a crystal field of the orthorhcmbic symmetry. By fitting the ESR experimental data to the axial symmetric spin Hamiltonian and the crystal field Hamiltonian, the spin Hamiltonian parameters were obtained. In addition, based on variation of ESR peak-hight versus doping concentration of Eu, the doping value Cs for saturated substitution of Eu2+ was found to be 0.34 mol%. |
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