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Thermoelectric Properties of LaRh(1-x)Ni(x)O(3)

Thermoelectric Properties of LaRh(1-x)Ni(x)O(3)

S Shibasaki, Y Takahashi, I Terasaki

J Phys Condens Matter. 2009 Mar 18;21(11):115501.

PMID: 21693919

Abstract:

We report measurements and analyses of resistivity, thermopower and thermal conductivity of polycrystalline samples of perovskite LaRh(1-x)Ni(x)O(3). The thermopower is found to be large at 800 K (185 µV K(-1) for x = 0.3), which is ascribed to the high-temperature stability of the low-spin state of Rh(3+)/Rh(4+) ions. This clearly contrasts with the thermopower of the isostructural oxide LaCoO(3), which rapidly decreases above 500 K owing to the spin-state transition. The spin state of the transition-metal ions is one of the most important parameters in oxide thermoelectrics.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR4243746	K 185			Price

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