| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1497944 | Progress in Solid State Chemistry | 2007 | 7 Pages |
Abstract
The perovskite transition-metal oxide ABO3 has been extensively studied in various areas in solids. While the B ion determines the electronic properties, e.g., ferroelectricity, ferromagnetism, and superconductivity, the A site has been regarded as a “back-seat player” to change the doping level or the bandwidth. However, in the ordered perovskite oxide AA′3B4O12, the A site order is closely related to the peculiar electronic states. In CaMn3Mn4O12, the unusually small bandwidth justifies to extrapolate the transport data to the high-temperature limit, and in CaCu3Ru4O12, a novel heavy-fermion state is realized through the Cu–O–Ru interaction.
Related Topics
Physical Sciences and Engineering
Materials Science
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Authors
Ichiro Terasaki, Wataru Kobayashi,