The thermal-transport properties of the Ca(3-x)Ag(x)Co(4)O(9) system (0 <= x <= 0.3)

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	The thermal-transport properties of the Ca(3-x)Ag(x)Co(4)O(9) system (0 <= x <= 0.3)
	Y. Wang; Y. Sui; J. G. Cheng; X. J. Wang; W. H. Su
	2007
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	19 期号:35
摘要	Polycrystalline Ca(3-x)Ag(x)Co(4)O(9) (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 Ca(2+), 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 Ca(3)Co(4)O(9) system can be improved by doping with Ag.
部门归属	[wang, yang; cheng, jinguang; wang, xianjie; su, wenhui] harbin inst technol, ctr condensada matter sci & technol, dept phys, harbin 150001, peoples r china. [sui, yu; su, wenhui] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;sui, y (reprint author), harbin inst technol, ctr condensada matter sci & technol, dept phys, harbin 150001, peoples r china;suiyu@hit.edu.cn
关键词	Thermoelectric Properties Conductivity Ca3co4o9 Thermopower Substitution Temperatures
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33880
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wang,Y. Sui,J. G. Cheng,et al. The thermal-transport properties of the Ca(3-x)Ag(x)Co(4)O(9) system (0 <= x <= 0.3)[J]. Journal of Physics-Condensed Matter,2007,19(35).
APA	Y. Wang,Y. Sui,J. G. Cheng,X. J. Wang,&W. H. Su.(2007).The thermal-transport properties of the Ca(3-x)Ag(x)Co(4)O(9) system (0 <= x <= 0.3).Journal of Physics-Condensed Matter,19(35).
MLA	Y. Wang,et al."The thermal-transport properties of the Ca(3-x)Ag(x)Co(4)O(9) system (0 <= x <= 0.3)".Journal of Physics-Condensed Matter 19.35(2007).