TY - JOUR
T1 - Thermoelectric properties of the AA′3B4O12-type ordered perovskite oxides
AU - Terasaki, Ichiro
AU - Kobayashi, Wataru
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - A site ordering
KW - Heavy fermion
KW - Thermoelectric properties
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U2 - 10.1016/j.progsolidstchem.2007.01.013
DO - 10.1016/j.progsolidstchem.2007.01.013
M3 - Article
AN - SCOPUS:34347210682
SN - 0079-6786
VL - 35
SP - 439
EP - 445
JO - Progress in Solid State Chemistry
JF - Progress in Solid State Chemistry
IS - 2-4 SPEC. ISS.
ER -