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The effect of lanthanide substitution on the superconductivity in Ba2YCu3O7 and (La,Sr)2CuO4 (invited) (1988)

Takagi, H. ; Uchida, S. ; Eisaki, H. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 63 (1988), S. 4009-4014

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ISSN: 1089-7550

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The effect of the lanthanide substitution on the superconductivity in Ba2YCu3O7 and (La,Sr)2CuO4 is investigated. The substitution effect is completely different between the two Cu-oxide systems. In Ba2YCu3O7, the replacement of Y with lanthanides gives negligible change in the transition temperature, whereas a few percent of lanthanide substitution depresses Tc by about 10 K in the (La,Sr)2CuO4 system. The depression of Tc in the latter system depends on the atomic number of lanthanides. From the results of the magnetic susceptibility and the relationship between the lattice parameters and Tc , we conclude that the depression of Tc cannot be ascribed to the magnetic effect nor to the volume effect. Possible mechanisms for the depression of Tc are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.340583

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