SUPERCONDUCTIVITY UP TO 95-K IN MERCURY-SUBSTITUTED 1212-THALLIUM CUPRATES (TL,HG)1SR2-YCU2O7+DELTA(YND1)

Authors
LETOUZE F PELUAU S MICHEL C MAIGNAN A MARTIN C HERVIEU M RAVEAU B
Citation
F. Letouze et al., SUPERCONDUCTIVITY UP TO 95-K IN MERCURY-SUBSTITUTED 1212-THALLIUM CUPRATES (TL,HG)1SR2-YCU2O7+DELTA(YND1), Journal of materials chemistry, 4(8), 1994, pp. 1353-1355
Citations number
14
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
4
Issue
8
Year of publication
1994
Pages
1353 - 1355
Database
ISI
SICI code
0959-9428(1994)4:8<1353:SUT9IM>2.0.ZU;2-Y
Abstract
The solid solution Tl1-xHgxSr2+yNd1-yCu2O7-delta has been characterize d; the homogeneity range extends up to x=0.2 and y=0.5. Electron diffr action and XRD studies confirm the statistical distribution of the cat ions in the different sites of the 1212-type structure. The best prope rties are observed for x=0.1 and y=0.5, with a T(c) of 95 K and a diam agnetic volume fraction of 70%. The influence of mercury substitution for thallium in the phase is discussed.