Electron Diffraction at Low Temperature III. Radial Distribution Analysis of Metastable Structure of Metal Films Prepared by Low Temperature Condensation

Electron diffraction patterns of films of Pb-12%Bi and beryllium prepared at 4.2°K show diffuse halos characteristic of amorphous state (Fujime, 1966). If the state of atomic aggregate of these films is amorphous, they will be examples of amorphous superconductors. In order to decide whether the films of Pb-12%Bi and beryllium prepared by the low temperature condensation are in an amorphous state or consists of very fine crystallites, the radial distribution analysis has been carried out for these films. The results of analysis lead to the conclusion that the state of atomic aggregate of these films is certainly amorphous.

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