Lattice Distortion around Impurity Ions in Alkali Halide Crystals : I. Calculation of Lattice Distortion and Comparison with X-Ray Data of Lattice Parameter Changes

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概要

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• Displacements of nearest-neighbor ions around various substitutional impurities in alkali halide crystals are calculated by the isotropic approximation and by the superlattice approximation using the repulsive potentials of Born type and Born-Verwey type. Results of these calculation agree with each other within the error of ±20%. Lattice parameter change due to solute ions, also calculated by these methods, are compared with available experimental data. Theoretical estimates of lattice parameter changes are found to be larger than experimental values.Possible ambiguities involved in these theories are examined, and it is concluded that Eshelby's theory of lattice parameter change is reliable within the error of about ±20%, provided the effect of core relaxation and anisotropy of distortion is properly taken into account.

• 社団法人日本物理学会の論文
• 1963-10-05

著者

• Fukai Yuh

  The Institute For Solid State Physics The University Of Tokyo

• Fukai Y.

  The Institute for Solid State Physics, The University of Tokyo

関連論文

• Lattice Distortion around Impurity Ions in Alkali Halide Crystals : I. Calculation of Lattice Distortion and Comparison with X-Ray Data of Lattice Parameter Changes
• Gradient-Elastic Tensor of Alkali Halide Crystals
• Lattice Distortion Around Impurity Ions in Alkali Halide Crystals : II.Quadrupolar Broadening of Nuclear Magnetic Resonance Lines

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