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Irradiation Effects Induced by 2.5 MeV-Electrons and 2.9 GeV-Krypton Ions in the High Tc Superconducting Oxides

Published online by Cambridge University Press:  28 February 2011

F. Studer ,
J. Prouost ,
D. Groult ,
B. Raveau ,
S. Bouffard ,
M. Toulemonde  and
J. C. Jousset
F. Studer
Affiliation:
CRISMAT, ISMRA-Université de Caen14032 CAEN Cedex:SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
J. Prouost
Affiliation:
CRISMAT, ISMRA-Université de Caen14032 CAEN Cedex:SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
D. Groult
Affiliation:
CRISMAT, ISMRA-Université de Caen14032 CAEN Cedex:SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
B. Raveau
Affiliation:
CRISMAT, ISMRA-Université de Caen14032 CAEN Cedex:SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
S. Bouffard
Affiliation:
CIRIL. CEA-CNRS 14040 CAEN Cedex: F. RULLIER-ALBENQUE, SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
M. Toulemonde
Affiliation:
CIRIL. CEA-CNRS 14040 CAEN Cedex: F. RULLIER-ALBENQUE, SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
J. C. Jousset
Affiliation:
CIRIL. CEA-CNRS 14040 CAEN Cedex: F. RULLIER-ALBENQUE, SESI-CEA. Ecole Polytechnioue. 91405 PALAISEAU., FRANCE.
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Abstract

The resistivity measurements of bulk super-conducting oxides La2−xSrxCuO4−x/2+ 〈0.15〈x〈0.2) irradiated by 2.5 Mev-electrons and YBa2Cu3O7-δ 〈0〈δ〈0.15) irradiated by 2.9 GeU-krypton ions have shown a regular and constant decrease of the critical temperature Tc as a function of the fluence.

On the contrary, an increase of Tc has been observed durino irradiation of super-conduct ino La2CuO4 compound by 2.9 GeV-krypton ions, which saturates at Tc/Tco = 0.1 for fluences hioher than 3.1012 Kr.cm−. The evolution of the R(T) curves during irradiation is very similar to the one observed under Dressure.

A comparison of the variations of Tc as a function of the number of di solacements oer atom for various particles (n. e−. He+. O. Kr) suggests that the hijjh electronic stoppino power of the heavy ions could be the main factor of damage.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 877
Copyright
Copyright © Materials Research Society 1988

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References

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