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The thermoelectric power of charge-density-wave conductors Rb0.3MoO3 and Rb0.15K0.15MoO3 |
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| Authors: | Junfeng Wang Di Yin Zhengyou Liu Decheng Tian Yuheng Zhang |
| Institution: | a Department of Physics, Wuhan University, Wuhan 430072, China b International Center for Material Physics, Shenyang 110015, China c Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China |
| Abstract: | The thermoelectric power (TEP) of the quasi-one-dimensional charge-density-wave (CDW) conductors rubidium blue bronze Rb0.3MoO3 and its alloy Rb0.15K0.15MoO3 were measured in the temperature range 80-280 K. The result showed a sign change from a small positive value to a great negative value where the Peierls transition temperatures (Tp) are 183 and 180 K for Rb0.3MoO3 and Rb0.15K0.15MoO3, respectively. Above Tp, the TEP for both samples can be described with the empirical relation S=AT+B; while below Tp, the TEP fits well the relation S=AT+B/T based on the experimental data. The Fermi energies εF for Rb0.3MoO3 and Rb0.15K0.15MoO3 are estimated to be 1.55 and 0.53 eV, respectively. |
| Keywords: | 71 45 Lr 72 15 Jf |
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