Thermal Conductivity of Thermoelectric Rhodium Oxides Measured by a Modified Harman Method(Condensed matter: structure and mechanical and thermal properties)
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概要
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We report the thermal conductivity κ and figure of merit Z of thermoelectric rhodium oxides using a modified Harman method. κ and Z are obtained to be 30mW/(cm・K) and 1×10^<-4>K^<-1> at 200K, respectively, which are comparable to those of thermoelectric-layered cobalt oxides. In particular, Z=2.3×10^<-4>K^<-1> is found in the pseudo-one-dimensional Ba_<1.2>Rh_8O_<16> at 75K, which is the second-best value among oxides below 300K. We show that the modified Harman method is a convenient and powerful tool for investigating the thermoelectric properties of small crystals.
- 社団法人日本物理学会の論文
- 2008-07-15
著者
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TERASAKI Ichiro
Department of Applied Physics, Waseda University
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Terasaki Ichiro
Department Of Applied Physics Waseda University
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Terasaki Ichiro
Department Of Applied Physics The University Of Tokyo
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Kobayashi Wataru
Waseda Institute For Advanced Study Waseda University
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Tamura Wataru
Department Of Applied Physics Waseda University
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