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The Structure of Sputtered Superconducting Nb3Ge Films Revealed By X-Ray Diffraction, Transmission Electron Diffraction, and by Tunneling
Abstract Tunneling studies of sputtered Nb3Ge films have revealed the presence of two energy gaps, one which has been identified with the high Tc A15 phase and the other ascribed to highly disordered or amorphous Nb3Ge. In this paper we first give some details of the tunneling experiments which have not been discussed previously. The surprising tunneling results have led us to investigate the structure of these films using both x-ray diffraction at 300°K and transmission electron diffraction between 300 and 900°K. The complex electron diffraction patterns show both superstructure and diffuse scattering. This is interpreted as evidence for structural defects. A striking transition in the TEM patterns has been observed at 486°K.
The Structure of Sputtered Superconducting Nb3Ge Films Revealed By X-Ray Diffraction, Transmission Electron Diffraction, and by Tunneling
Abstract Tunneling studies of sputtered Nb3Ge films have revealed the presence of two energy gaps, one which has been identified with the high Tc A15 phase and the other ascribed to highly disordered or amorphous Nb3Ge. In this paper we first give some details of the tunneling experiments which have not been discussed previously. The surprising tunneling results have led us to investigate the structure of these films using both x-ray diffraction at 300°K and transmission electron diffraction between 300 and 900°K. The complex electron diffraction patterns show both superstructure and diffuse scattering. This is interpreted as evidence for structural defects. A striking transition in the TEM patterns has been observed at 486°K.
The Structure of Sputtered Superconducting Nb3Ge Films Revealed By X-Ray Diffraction, Transmission Electron Diffraction, and by Tunneling
Schmidt, P. H. (Autor:in) / Spencer, E. G. (Autor:in) / Joy, D. C. (Autor:in) / Rowell, J. M. (Autor:in)
01.01.1976
21 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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