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The superconducting “copper/carbonate cuprates” An electron microscopy study

✍ Scribed by M.A. Alario-Franco; P. Bordet; J.-J. Capponi; C. Chaillout; J. Chenavas; T. Fournier; M. Marezio; B. Souletie; A. Sulpice; J.-L. Tholence; C. Colliex; R. Argoud; J.L. Baldonedo; M.F. Gorius; M. Perroux

Book ID
103948341
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
482 KB
Volume
231
Category
Article
ISSN
0921-4534

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✦ Synopsis

By means of electron microscopy and diffraction together with EDX and EELS, we have confirmed the main characteristics of the structure of the recently discovered HTSC family of"copper/carbonate cuprates". These can be obtained at high pressure and have critical temperatures of the order of 117 K. It consists of a copper/carbonate ordered variant of the tetragonal "single X-O layered" cuprate structure.

The unit cell is given by a= 2at, b= bt and c= 2ct, where subindex t corresponds to the tetragonal single layer cell.

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