Electronic Properties of Pyrochlore-Type Ca2Ir2O7
Yuki Nakayama, Yoshihiko Okamoto, Daigorou Hirai, and Koshi Takenaka
TL;DR
This study investigates the electronic and magnetic properties of Ca2Ir2O7, revealing it to be metallic at room temperature with no phase transitions above 0.12 K, based on resistivity, susceptibility, and heat capacity measurements.
Contribution
First comprehensive experimental characterization of Ca2Ir2O7's electronic and magnetic properties in the pyrochlore structure.
Findings
Ca2Ir2O7 is metallic below room temperature.
No electronic or magnetic phase transitions above 0.12 K.
Experimental data supports metallic behavior in pyrochlore Ca2Ir2O7.
Abstract
The electrical resistivity, magnetic susceptibility, and heat capacity of sintered samples of Ca2Ir2O7, in which pentavalent Ir atoms with 5d4 electron configuration form a pyrochlore structure, have been studied. The obtained experimental data strongly suggest that Ca2Ir2O7 is metallic below room temperature and exhibits no electronic or magnetic phase transitions above 0.12 K.
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