Zn, Mn and Te K-edge EXAFS studies of the diluted magnetic semiconductor

Extended x-ray absorption fine-structure measurements at the Zn, Mn and Te K edges of the diluted magnetic semiconductors have been performed to investigate the local coordination around each of the atoms. The nearest-neighbour and next-nearest-neighbour interatomic distances are found to be almost unchanged on changing the Mn concentration (x). These results indicate that the tetrahedral and clusters are embedded in the alloys with a well-preserved form, in agreement with the x-independent Mn 3d partial density of states derived from resonant photoemission measurements.