The Local Structure Distortion of Chromium-Phosphorus Clusters as Cr²⁺ Impurity in InP Semiconductors

Abstract

By diagonalizing the complete energy matrix of a d 4 configuration ion in tetragonal symmetry, the zero-field-splitting parameters a, D and F of InP:Cr 2+ have been studied. The local structure distortion parameters ∆R = 0.08Å and ∆θ = 1.01 • were estimated. They show an expansion distortion around Cr 2+ in the InP semiconductor. The Jahn-Teller energy E JT is found to be about 413 cm −1 , which agrees well with the experiment. -PACS numbers: 75.10. Dg;