Transport properties and electronic states in the layered thermoelectric rhodate (Bi1-xPbx)1.8Ba2Rh 1.9Oy

Satoshi Okada, Ichiro Terasaki, Hirotaka Okabe, Masanori Matoba

研究成果: Article査読

33 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1525-1528
ページ数4
ジャーナルJournal of the Physical Society of Japan
74
5
DOI
出版ステータスPublished - 2005 5 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Transport properties and electronic states in the layered thermoelectric rhodate (Bi<sub>1-x</sub>Pb<sub>x</sub>)<sub>1.8</sub>Ba<sub>2</sub>Rh <sub>1.9</sub>O<sub>y</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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