Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
52 (1988), S. 1989-1991
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Samples of LaBa2 Cu3 O7−y have been synthesized, which show a superconducting transition above 90 K. One of the samples shows a superconducting transition with an onset at 93 K and a zero resistivity at 92 K. These temperatures are the highest among those reported so far on this system and even higher than those in YBa2 Cu3 O7−y. The magnetic susceptibility measurement also shows that it has a superconducting transition with onset at around 93 K. To synthesize such good LaBa2 Cu3 O7−y requires two important procedures. First is sintering above 950 °C in N2 gas atmosphere and the second is annealing at 300 °C in dried O2 gas atmosphere.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.99744
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