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A study of the behaviour of the Na i/K i column density ratio in the interstellar medium using the Na ultraviolet doublet

✍ Scribed by S. N. Kemp; B. Bates; J. E. Beckman; C. J. Killow; R. Barrena; D. C. Kennedy; J. Rodríguez Alamo

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
427 KB
Volume
333
Category
Article
ISSN
0035-8711

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The composition Bi4Sr3Ca3Cu4-• for x=0.2, 0.4, 0.6, 0.8 and 1.0 was examined, in order to studythe effect of Na/Cu substitution on both the glass-forming ability as well as the superconducting properties of the glass-ceramic (GC) phase. Because the GC phase of the composition Bi4Sr3Ca3Cu4016 (4334)