Theoretical Study of the Local Distortion for Ni+ in Magnesium Oxide

Abstract:

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The local distortion of the impurity Ni+ center in magnesium oxide is theoretically studied by analyzing its electron paramagnetic resonance g factor from the formula of a 3d9 ion under octahedra with tetragonal elongation deformation. The defect center is suggested to exhibit the relative elongation along the four-fold axis by about 0.05 Å of the Jahn-Teller nature. The observed isotropic g factor ( 2.2391) is attributable to the dynamical average of the anisotropic g values under tetragonal elongation due to the dynamical Jahn-Teller effect.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 305-306)

Edited by:

David J. Fisher

Pages:

55-59

DOI:

10.4028/www.scientific.net/DDF.305-306.55

Citation:

X. M. Li "Theoretical Study of the Local Distortion for Ni+ in Magnesium Oxide", Defect and Diffusion Forum, Vols. 305-306, pp. 55-59, 2010

Online since:

October 2010

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$35.00

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