Enhanced thermopower in an intergrowth cobalt oxide Li$_{0.48}$Na$_{0.35}$CoO$_{2}$

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dc.creatorRen, Zhi
dc.creatorShen, Jingqin
dc.creatorJiang, Shuai
dc.creatorChen, Xiaoyang
dc.creatorFeng, Chunmu
dc.creatorXu, Zhu'an
dc.creatorCao, Guanghan
dc.date2005-11-29
dc.date.accessioned2026-07-07T06:49:27Z
dc.date.available2026-07-07T06:49:27Z
dc.descriptionWe report the measurements of thermopower, electrical resistivity and thermal conductivity in a complex cobalt oxide Li$_{0.48}$Na$_{0.35}$CoO$_{2}$, whose crystal structure can be viewed as an intergrowth of the O3 phase of Li$_{x}$CoO$_{2}$ and the P2 phase of Na$_{y}$CoO$_{2}$ along the c axis. The compound shows large room-temperature thermopower of $\sim$180 $μ$V/K, which is substantially higher than those of Li$_{x}$CoO$_{2}$ and Na$_{y}$CoO$_{2}$. The figure of merit for the polycrystalline sample increases rapidly with increasing temperature, and it achieves nearly 10$^{-4}$ K$^{-1}$ at 300 K, suggesting that Li$_{x}$Na$_{y}$CoO$_{2}$ system is a promising candidate for thermoelectric applications.
dc.descriptionSubmitted to APL
dc.identifierhttps://arxiv.org/abs/cond-mat/0511691
dc.identifierhttp://arxiv.org/abs/cond-mat/0511691
dc.identifierJ. Phys.: Condens. Matter 18, L379-L384 (2006)
dc.identifierdoi:10.1088/0953-8984/18/29/L01
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104349
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleEnhanced thermopower in an intergrowth cobalt oxide Li$_{0.48}$Na$_{0.35}$CoO$_{2}$
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