| The thermal-transport properties of the Ca3-xAgxCo4O9 system (0 <= x <= 0.3) | |
| Wang, Yang1; Sui, Yu2; Cheng, Jinguang1; Wang, Xianjie1; Su, Wenhui1,2 | |
| Corresponding Author | Sui, Yu(suiyu@hit.edu.cn) |
| 2007-09-05 | |
| Source Publication | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| ISSN | 0953-8984 |
| Volume | 19Issue:35Pages:10 |
| Abstract | Polycrystalline Ca3-xAgxCo4O9 (0 <= x <= 0.3) samples were prepared by solid-state reaction and their thermo-transport properties were studied from 5 K to room temperature. With the substitution of Ag+ for Ca2+, the internal chemical pressure induced by Ag+ doping has a strong effect on the transport properties of such a strongly correlated Fermi liquid system. The electrical conductivity and the thermoelectric power increase simultaneously because of the enhancement of carrier concentration and the change of carrier mobility. The thermal conductivity decreases monotonically up to x = 0.3 due to the Ag ion acting as a rattler in the system. These results showed that the thermoelectric performance of the Ca3Co4O9 system can be improved by doping with Ag. |
| DOI | 10.1088/0953-8984/19/35/356216 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Condensed Matter |
| WOS ID | WOS:000253116800012 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/91396 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sui, Yu |
| Affiliation | 1.Harbin Inst Technol, Ctr Condensada Matter Sci & Technol, Dept Phys, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Yang,Sui, Yu,Cheng, Jinguang,et al. The thermal-transport properties of the Ca3-xAgxCo4O9 system (0 <= x <= 0.3)[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(35):10. |
| APA | Wang, Yang,Sui, Yu,Cheng, Jinguang,Wang, Xianjie,&Su, Wenhui.(2007).The thermal-transport properties of the Ca3-xAgxCo4O9 system (0 <= x <= 0.3).JOURNAL OF PHYSICS-CONDENSED MATTER,19(35),10. |
| MLA | Wang, Yang,et al."The thermal-transport properties of the Ca3-xAgxCo4O9 system (0 <= x <= 0.3)".JOURNAL OF PHYSICS-CONDENSED MATTER 19.35(2007):10. |
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