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A 55 K superconducting copper oxycarbonate: Tl1−xBixSr4Cu2CO3O7

✍ Scribed by A. Maignan; M. Huvé; C. Michel; M. Hervieu; C. Martin; B. Raveau

Book ID
103946759
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
430 KB
Volume
208
Category
Article
ISSN
0921-4534

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compound (I) is isolated in the course of attempts to introduce NO 3 groups into derivatives of the Tl "1201" structure. According to the powder XRD data, (I) (tetragonal, P4/mmm) contains Cr(VI) similar to the 77 K superconductor (Tl 2/3 Cr 1/3 ) Sr 4 Cu 2 (CO 3 )O 7 (II), but consists of an interg