Abstract
The vacuum deposition of gold upon the color‐centered surface of NaCl produced by x‐ray irradiation is described. The increase of nucleation density and the enhancement of (100) parallel orientation are observed. It appeared that these findings in experimental results compared with the phenomena on the normal cleavage surface were attributable to the effects of point imperfections produced. A lowering of epitaxial temperature is also observed. The controlled production of imperfections on the surface by irradiation has a critical effect upon the nucleation and epitaxial growth.