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

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Abstract

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.

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Authors and Affiliations

  1. College of Sciences, Henan Agricultural University, No. 95 Wenhua Road, Zhengzhou City, Henan Province, 450002, China

    Lianxuan Zhu, Minjie Wang & Jianliang Dang

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  1. Lianxuan Zhu
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  2. Minjie Wang
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  3. Jianliang Dang
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Correspondence to Lianxuan Zhu.

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Zhu, L., Wang, M. & Dang, J. Investigations of EPR Parameters of MgTiO3:Cr3+, SrTiO3:Cr3+, and SrTiO3:Mn4+ Crystals. Appl Magn Reson 41, 45–50 (2011). https://doi.org/10.1007/s00723-011-0235-3

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  • DOI: https://doi.org/10.1007/s00723-011-0235-3

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