Fluorescence EXAFS Study of Zn-Doped LEC InP Crystal

Interatomic distance between Zn impurity atom and P host atom in LEC InP:Zn was determined by extended X-ray absorption fine structure by monitoring the Zn Kα fluorescence yield. The measured Zn-P interatomic distance remained the value of 2.42 A, which was in excellent agreement with the distance 2.41 A calculated from Pauling's tetrahedral radii for zincblende structure. From XANES spectra, strong lattice distortion was observed around the Zn atom.