No coin nor oath required. For personal study only.
base films vapour-quenched onto glass substrates. A similar technique has already been used for producing Al-type overlays of S, Ge, Sn, Se and Te. On annealing cyclically at increasing temperatures, a critical temperature is reached at which the overlay breaks because of the transformation of the Al-type modification to the usual crystal structure. Both the density and the superconducting transition temperature of the overlay depend on the base-film material and increase, for each element, with decreasing base-film lattice constant. The density is larger than the ordinary, but smaller than would be expected for a perfect pseudomorph or an ideal close-packed atom arrangement. The superconducting transition temperature is higher the thinner the overlay and the lower the annealing temperature. A comparison with previous results shows that the superconducting transition temperature of the Al-type overlays is higher than both that of films with normal crystal1 structure quench-condensed directly on glass substrates and that of samples subjected to high pressures. (Italy) CRcaIe, Vacuum, 27 (l), 1977,3-6. 3 1. SPUTTERING 3340. The roughness parameters of glass films. (GB) 21
๐ SIMILAR VOLUMES
## Atomic energy Collie, C. J. and Diserens, N.J. 74.146 'Progress in the development of an interacting computer program for magnetic field design and analysis in two and three dimensions' Rutherford High Energy Lab., Didcot, Berks, UK (July 1973) 23 pp There has been a demand for an interactive