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Journal Articles

Synthesis and physical properties of pyrochlore iridium oxides Pb$$_{2-x}$$Ca$$_{x}$$Ir$$_{2}$$O$$_{7-y}$$

Sakai, Hironori; Ono, Hiroyuki*; Oba, Noriaki*; Kato, Masaki*; Yoshimura, Kazuyoshi*

Physica B; Condensed Matter, 329-333(2), p.1038 - 1039, 2003/05

https://doi.org/10.1016/S0921-4526(02)02239-1
 Times Cited Count：4 Percentile：26.91(Physics, Condensed Matter)

Pyrochlore iridium oxides Pb$$_{2-x}$$Ca$$_{x}$$Ir$$_{2}$$O$$_{7-y}$$ ($$x$$=0.0, 0.2, 0.4, 0.6, 0.8) were prepared by solid state reaction. The electrical resistivity and the magnetic susceptibility were measured between 4.2 and 300 K. These compounds show metallic conductivity and obey the Curie-Weiss law with temperature independent term. The metallic conductivity of Pb$$_{2}$$Ir$$_{2}$$O$$_{7}$$ is suppressed by the Ca substitution for Pb site.

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