Resistivity, thermopower and Hall coefficient have been systematically measured for polycrystalline samples of (Bi1-xPbx) 1.8Ba2Rh1.9Oy. An upturn of the resistivity and the Hall coefficient below 50 K is ascribed to decrease in the density of states due to a pseudogap formation. The thermopower and Hall coefficient are nearly identical to those of the thermoelectric oxide Bi 2Sr2Co2Oy. This suggests a nearly identical density of states between the two oxides, which is also verified from a first-principle calculation, where a broader 4d orbital and a larger rhodium-rhodium distance along the in-plane direction accidentally give nearly the same density of states as those of the layered cobalt oxides.
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