Thermoelectric properties of LaRh$_{1-x}$Ni$_x$O$_3$

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dc.creatorShibasaki, S.
dc.creatorTakahashi, Y.
dc.creatorTerasaki, I.
dc.date2007-12-11
dc.date2009-02-12
dc.date.accessioned2026-07-07T12:40:08Z
dc.date.available2026-07-07T12:40:08Z
dc.descriptionWe 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 $μ$V/K 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.
dc.description8 pages, 5 figures, J. Phys. Condens. Matter (in press)
dc.identifierhttps://arxiv.org/abs/0712.1626
dc.identifierhttp://arxiv.org/abs/0712.1626
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219351
dc.subjectStrongly Correlated Electrons
dc.titleThermoelectric properties of LaRh$_{1-x}$Ni$_x$O$_3$
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