Local symmetry and mutual interaction of Mn2+ ions in glasses
Local symmetry and mutual interaction of Mn2+ ions in glasses
复制标题
DOI：
10.1016/0022-3093(95)00345-2
复制
发表时间：
1995-12
影响因子：
3.5
通讯作者：
V. Černý;B. Frumarová-Petrová;J. Rosa;I. L. Licholit;M. Frumar
中科院分区：
文献类型：
--
作者：
V. Černý;B. Frumarová-Petrová;J. Rosa;I. L. Licholit;M. Frumar
在CdCl2PbCl2KI类型的Mn2+掺杂卤化物玻璃和GeS2Ga2S3MnCl2类型的硫卤化物玻璃中，在4-40 K温度范围内测量了有效g值分别为2.0和4.3的两个电子顺磁共振信号的强度。将Mn2+离子含量低于1.0 mol% MnCl2的玻璃中两种共振强度的实验比值与利用两个磁活性中心的自旋哈密顿参数计算出的两个玻尔兹曼分布函数的比值进行拟合。假设其他玻璃中存在某种类型的交换相互作用。这种解释与共振信号形状变化的实验证据以及强度比曲线的模拟一致。
The intensity of two electron paramagnetic resonance signals with effective g-values of 2.0 and 4.3 was measured in the temperature region 4–40 K in Mn2+-doped halide glasses of the type CdCl2PbCl2KI and in chalcohalide glasses of the type GeS2Ga2S3MnCl2. The experimental ratio of the intensities of the two resonances in glasses with an Mn2+ion content lower than 1.0 mol% MnCl2was fitted to the ratio of the two Boltzmann distribution functions calculated with the spin-Hamiltonian parameters of the two magnetically active centers. Some type of exchange interaction was assumed to be present in the other glasses. This interpretation agrees with the experimental evidence of changes of the shape of the resonance signal as well as with the simulation of the intensity ratio curves.