ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The series of compounds Pb2Sr2(R/Ca)Cu3O8, (R=Ce-Tm) are known to superconduct at temperatures as high as Tc=84 K. We have studied the relationship between superconductivity and magnetism in the Ce and Pr analogs. In addition, we report the synthetic route and the magnetic properties of the actinide analog Pb2Sr2(Cm/Ca)Cu3O8. The parent compound Pb2Sr2CmCu3O8 is not a superconductor, but shows evidence of long range magnetic ordering at about 18 K. This is a much higher temperature than is observed for any of the other R-ion parent compounds. These results will be discussed in terms of the different hybridization and bonding properties of the 4f and 5f electrons, and how these differences influence superconductivity. These results will be compared with the Pr and Cm analogs of the other superconducting series RBa2Cu3O7 and R2−xThxCuO4.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.356856
