Investigations of the Defect Structures and g Factors for SnO2:Cr5+, SnO2:V4+, and TiO2:V4+ Crystals
- Autores: Zhu L.1, Wang M.1
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Afiliações:
- School of Sciences, College of Sciences, Henan Agricultural University
- Edição: Volume 47, Nº 3 (2016)
- Páginas: 247-253
- Seção: Article
- URL: https://journals.rcsi.science/0937-9347/article/view/247446
- DOI: https://doi.org/10.1007/s00723-015-0754-4
- ID: 247446
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Resumo
The electron paramagnetic resonance (EPR) g factor formulas for SnO2:Cr5+, SnO2:V4+ and TiO2:V4+ crystals are deduced from Jahn–Teller effect and contributions of the charge-transfer levels. The tetragonal distortions ΔR = −0.0283, −0.0091, and −0.0045 nm, and Δθ = 0°, −0.0335°, and −0.0010°, for SnO2:Cr5+, SnO2:V4+ and TiO2:V4+, respectively. The calculations of the g factors agree well with the experimental values. The contributions of the charge-transfer levels to g factors increase with the increasing valence state. It must be taken into account in the precise calculations of g factors for the high-valence state d1 ions in crystals.
Sobre autores
Lianxuan Zhu
School of Sciences, College of Sciences, Henan Agricultural University
Email: wmzk2002@163.com
República Popular da China, NO. 95 Wenhua Road, Zhengzhou City, Henan Province, 450002
Minjie Wang
School of Sciences, College of Sciences, Henan Agricultural University
Autor responsável pela correspondência
Email: wmzk2002@163.com
República Popular da China, NO. 95 Wenhua Road, Zhengzhou City, Henan Province, 450002