Answers are grounded in this paper and cite their sources.
A molecular model allowing relaxation up to second-nearest neighbours and polarization of the negative ions is used to calculate equilibrium configurations of Ag + substitutional defects in RbCl and RbBr. Including the quadrupolar deformability of the Ag + ion can lead to an equilibrium configuration of the defect which is off-centre along the (110) axis, with a quadrupolar distortion of the surroundings, in agreement with experiment. Dipole moment and pressure dependence of the defect configuration also agree quite well with experiment. The high-pressure on-centre configuration is predicted to show a quadrupolar distortion.
No takes yet. Share an insight, caveat, or question.
Wilhelm Kleppmann (1976) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: