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LU Guang-duo, WU Shao-yi, ZHANG Hua-ming, YAO Jin-song. Investigations of the Anisotropic g Factors for Co2+ in CaTiO3[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 897-899.
Citation: LU Guang-duo, WU Shao-yi, ZHANG Hua-ming, YAO Jin-song. Investigations of the Anisotropic g Factors for Co2+ in CaTiO3[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 897-899.
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Investigations of the Anisotropic g Factors for Co2+ in CaTiO3

  • 1.

    School of Physical Electronics,University of Electronics Science and Technology of China Chengdu 610054

  • Received Date: 2007-03-15
  • Rev Recd Date: 2007-10-06
  • Publish Date: 2008-12-15
  • The anisotropic g factors gx, gy and gz for Co2+ in CaTiO3 are theoretically investigated from the perturbation formulas of the g factors for a 3d7 ion in orthorhombically distorted octahedra based on the cluster approach. The related orthorhombic field parameters are determined from the local structure of the studied impurity center and the superposition model. Because the impurity Co2+ differs from the host Ti4+ in ionic radius and charge, the Co-O band lengths along two directions may suffer a relative variation by about 5.6%, yielding significant orthorhombic distortion. The calculated g factors by using the above local structure are in reasonable agreement with the experimental findings.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Investigations of the Anisotropic g Factors for Co2+ in CaTiO3

  • 1. School of Physical Electronics,University of Electronics Science and Technology of China Chengdu 610054
  • Received Date: 2007-03-15
  • Rev Recd Date: 2007-10-06
  • Publish Date: 2008-12-15

Abstract: The anisotropic g factors gx, gy and gz for Co2+ in CaTiO3 are theoretically investigated from the perturbation formulas of the g factors for a 3d7 ion in orthorhombically distorted octahedra based on the cluster approach. The related orthorhombic field parameters are determined from the local structure of the studied impurity center and the superposition model. Because the impurity Co2+ differs from the host Ti4+ in ionic radius and charge, the Co-O band lengths along two directions may suffer a relative variation by about 5.6%, yielding significant orthorhombic distortion. The calculated g factors by using the above local structure are in reasonable agreement with the experimental findings.

LU Guang-duo, WU Shao-yi, ZHANG Hua-ming, YAO Jin-song. Investigations of the Anisotropic g Factors for Co2+ in CaTiO3[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 897-899.
Citation: LU Guang-duo, WU Shao-yi, ZHANG Hua-ming, YAO Jin-song. Investigations of the Anisotropic g Factors for Co2+ in CaTiO3[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(6): 897-899.
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