Oriented crystallization of thin Pd-Cu films

The phase composition, substructure, and orientation of thin Pd-Cu films obtained by magnetron sputtering of an alloy target and condensation on the (001) surface of phlogopite have been studied by transmission electron microscopy (TEM). Three-orientation epitaxial structures of the β phase with a CsCl structure have been obtained. In epitaxial two-phase solid-solution films, the α and β phases are oriented according to the Nishiyama-Wassermann and Kurdjumov-Sachs orientation relationships. Single-crystal films of α and β solid solutions have been obtained on phlogopite. The plasma effect has been revealed; under the conditions of magnetron sputtering the orientation relationships not typical of epitaxial films of fcc and bcc metals on phlogopite have been realized in the temperature-concentration range of the β ⇄ α phase transformation.