Investigations of EPR Parameters of MgTiO3:Cr3+, SrTiO3:Cr3+, and SrTiO3:Mn4+ Crystals

Lianxuan Zhu; Minjie Wang; Jianliang Dang

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Investigations of EPR Parameters of MgTiO₃:Cr3+, SrTiO₃:Cr3+, and SrTiO₃:Mn4+ Crystals

机译：MgTiO _{3 ：Cr 3 + ，SrTiO _{3 ：Cr 3 + 和SrTiO 3 ：Mn 4 + 晶体}}

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Complete high-order perturbation formulas are established based on charge-transfer (CT) and crystal-field (CF) mechanisms. The electron paramagnetic resonance (EPR) g-factors of MgTiO₃:Cr3+, SrTiO₃:Cr3+, and SrTiO₃:Mn4+ crystals are calculated from the formulas. The calculations of the EPR g-factors agree well with the experimental values. The contribution rate of the CT mechanism to EPR parameters increases with increasing valence state of the 3d n ions in the crystals. For the higher-valence state 3d 3 Mn4+ ion in the crystals, the elucidation of the EPR parameters rationally involves both CF and CT mechanisms.

机译：基于电荷转移（CT）和晶体场（CF）机理建立了完整的高阶微扰公式。 MgTiO _{3 ：Cr 3 + ，SrTiO _{3 ：Cr 3 + 3 ：Mn 4 + 晶体。 EPR g因子的计算与实验值非常吻合。 CT机制对EPR参数的贡献率随晶体中3d n 离子的价态增加而增加。对于晶体中较高价态的3d 3 Mn 4 + 离子，对EPR参数的阐明合理地涉及CF和CT机制。}}

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《Applied Magnetic Resonance》 |2011年第1期|p.45-50|共6页
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Lianxuan Zhu; Minjie Wang; Jianliang Dang;
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Investigations of EPR Parameters of MgTiO3:Cr3+, SrTiO3:Cr3+, and SrTiO3:Mn4+ Crystals

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Investigations of EPR Parameters of MgTiO₃:Cr3+, SrTiO₃:Cr3+, and SrTiO₃:Mn4+ Crystals