The oxyflouride Nd2CuO4−xFx
In: Physica C: Superconductivity, Jg. 198 (1992-08-01), S. 209-214
Online
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Zugriff:
Several synthesis methods of Nd 2 CuO 4 have been investigated, based either on the precipitation of hydroxides, oxalates or the formation of carboxylic resin. X-ray patterns show a quasi identity of crystal structure only after flourination; magnetic susceptibility in the superconducting state as well as T c onset depend significantly on the preparation method. TGA experiments and X-ray measurements show that fluorine substitutes oxygen during neutral gas annealing of Nd 2 CuO 4 fluorinated precursor. The amount of diamagnetism of a superconducting material is shown to be related to the Nd 2 CuO 4 grain size and also to the sintering ability of the powders.
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The oxyflouride Nd2CuO4−xFx
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Autor/in / Beteiligte Person: | Tighezza, A. ; Rehspringer, J.L. ; Drillon, Marc |
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Zeitschrift: | Physica C: Superconductivity, Jg. 198 (1992-08-01), S. 209-214 |
Veröffentlichung: | Elsevier BV, 1992 |
Medientyp: | unknown |
ISSN: | 0921-4534 (print) |
DOI: | 10.1016/0921-4534(92)90193-g |
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