Abstract

In a Li₂CaSiO₄ crystal, tetragonal Cr⁴⁺ centers (electron configuration 3d², spin S = 1) are identified and investigated by the ESR method at different frequencies. The magnitude of zero-field splitting is determined. An additional signal with a reverse phase is observed in the region, in which the positions of the two transitions of Cr⁴⁺ coincide. For an uncontrolled impurity of Mn²⁺ ions (S = I = 5/2), the parameters and localization of the spin Hamiltonian are determined.

中文翻译：

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Li 2 CaSiO 4晶体中Cr 4+和Mn 2+离子的顺磁共振

摘要

在Li ₂ CaSiO ₄晶体中，通过ESR方法在不同频率下识别并研究了四方Cr ⁴⁺中心（电子构型3 d ²，自旋S = 1）。确定零场分裂的幅度。在该区域中观察到具有反相的附加信号，在该区域中Cr ⁴⁺的两个跃迁的位置重合。对于不受控制的Mn ²⁺离子杂质（S = I = 5/2），确定了自旋哈密顿量的参数和位置。