ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Samples were prepared at Houston by reacting appropriate amounts of T12O3, CaO, BaCO3 and CuO in two steps. Extreme care was taken, because of the toxicity of Tl and T13O3. A Ba2Cu3O5 powder was made by heating a mixture of BaCO3 and CuO powders in air at 920 °C for 2 h. The resulting powder ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/332623a0
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