CRYSTALLINE AND AMORPHOUS THIN FILMS OF GERMANIUM TELLURIDE GeTe

Jan Przyłuski, Zbigniew Szczęsny, Tomasz Wartanowicz

Abstract


The paper deals with experimental investigations on obtaining amorphous films of germanium telluride GeTe by means of vacuum vaporization, in oder to obtain stoichiometry of their composition. The existence of picrocrystals in the obtained GeTe films of an average thickness 5000 A was controlled with X rays by means of Bragg-Brentano dyphractometer method. The homogeneity of GeTe distribution in the films was examined by
X radiation exciting directly the beam of primary electrons. The thermically initiated phase transformation of GeTe films from the shape accepted as amorphous according to the given structural investigations, to the crystalline shape proved possible the obtaining of amorphous films of GeTe under the described conditions of the investigation.

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