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Micron-Thick Sr-Based (Hg,Pb)-1223 Films with jc(77K) of above 106 A/cm2

Published online by Cambridge University Press:  18 March 2011

S.O. Klimonsky
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
S.V. Samoilenkov
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
O.Yu. Gorbenko
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
N.P. Kiryakov
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
D.A. Emelianov
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
A.V. Liashenko
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
S.R. Lee
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
A.R. Kaul
Affiliation:
Chemistry Department, Moscow State University, Moscow 119899, Russia
D.G. Andrianov
Affiliation:
Institute GIREDMET, Moscow 109017, Russia
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Abstract

For the first time the (001)-oriented Sr-based (Hg,Pb)-1223 films have been synthesized using the two-step procedure. Hg-free precursor films with the thickness of 1 μm have been deposited by MOCVD or PLD and then the films were annealed in sealed quartz ampoules together with synthesised (Hg,Pb)-1223 ceramics or a pressed precursor mixture of the same cation composition. No post-annealing in oxygen was used for these films. The phase composition of the PLD-films depended crucially on the deposition temperature of the precursor films. The best MOCVD films contained predominantly (Hg,Pb)-1223 and small amounts of non-superconducting phases according to XRD. The Tc=118 K and jc(77K,0.01T) = 2.5×106 A/cm2were measured for the MOCVD-samples.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

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Micron-Thick Sr-Based (Hg,Pb)-1223 Films with jc(77K) of above 106 A/cm2
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