THE COMPLEXES OF Co2+ IN Bi12SiO20 AND Co3+ IN Bi12TiO20

Authors

  • Petya Petkova Shumen University “Konstantin Preslavsky”, 115 Universitetska street, 9712 Shumen
  • Petko Vasilev
  • Genoveva Nedelcheva

DOI:

https://doi.org/10.46687/jsar.v3i1.67

Keywords:

absorption spectrum, 3d transition metals, Jahn-Teller effect, spin-orbit interaction

Abstract

We have investigated the absorption of the Co doped Bi12MO20 (M = Si, Ti) in the spectral region 12 092–18 149 cm-1. The observed absorption band is due to the Co-impurity in the visible spectral region. This absorption band does not contain information about the exact energy position of the Co levels. Therefore, we have calculated the second derivative of absorption. It is established that Co2+ ions are surrounded by distorted tetrahedral coordination in Bi12SiO20 (BSO). The energy level structure of the Co2+ ion in BSO and this of Co3+ ion in Bi12TiO20 are also presented. We have calculated the crystal field parameter Dq
and the Racah parameters B and C for Co2+ ion.

Author Biography

Petya Petkova, Shumen University “Konstantin Preslavsky”, 115 Universitetska street, 9712 Shumen

Shumen University “Konstantin Preslavsky”, 115 Universitetska street, 9712 Shumen

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Published

05.03.2023

How to Cite

Petkova, P., Vasilev, P., & Nedelcheva, G. (2023). THE COMPLEXES OF Co2+ IN Bi12SiO20 AND Co3+ IN Bi12TiO20. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, 3(1), 78–83. https://doi.org/10.46687/jsar.v3i1.67

Issue

Vol. 3 No. 1 (2013): Journal Scientific and Applied Research

Section

Physics

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