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Superconducting oxyfluorides Nd2CuO4−xFx;Nd2−zGdzCuO4−xFx and Pr2CuO4−x Fx

✍ Scribed by U. Asaf; O. Cohen; I. Felner; U. Yaron

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
235 KB
Volume
209
Category
Article
ISSN
0921-4534

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✦ Synopsis

Electron-doped superconductors Nd2CuO4_xF x ; Nd2-zGdz CuO4-xFx and Pr2CuO 4_ xFx have been synthesized A single doping level (x bulk-t). 18) of F was used for all the samples. The Nd was also substituted with Gd at z=0.05; 0.20 and 0 50. The fluorination of the Nd; NdGd and Pr cuprates (oxidized propionates) was made in a vacuum furnace. Except for the sample with highest Gd content, dc magnetization measurements detected superconducting transition in all these samples with T c -26 K. independent of the choice of Ln In some of the fluorinated Nd-cuprates a second, very weak superconducting phase

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