Strongly Correlated Properties and Enhanced Thermoelectric Response in Ca(3)CO(4-x)M(x)O(9) (M = Fe, Mn, and Cu)

IMR OpenIR

	Strongly Correlated Properties and Enhanced Thermoelectric Response in Ca(3)CO(4-x)M(x)O(9) (M = Fe, Mn, and Cu)
	Y. Wang; Y. Sui; P. Ren; L. Wang; X. J. Wang; W. H. Su; H. J. Fan
	2010
发表期刊	Chemistry of Materials
ISSN	0897-4756
卷号	22 期号:3 页码:1155-1163
摘要	We report the strongly correlated, electrical transport, magnetic, and thermoelectric properties of a series of Fe, Mn, and Cu doped Ca(3)Co(4)O(9). The results indicate that Fe/Mn substitutes for Co in CoO(2) layers whereas CU substitutes for Co in Ca(2)CoO(3) layers. Because of the different doping sites, the electronic correlations increase remarkably in Fe and Mn doped series while remaining unchanged in Cu doped series. Correspondingly, the transport mechanism, magnetic properties, and some characteristic parameters along with transition temperatures all exhibit two distinct evolutions for Fe/Mn doping and Cu doping. The thermoelectric characteristics are improved in each series. Nevertheless, the improvement of thermoelectric performance is most significant in Fe doped samples due to the unexpected changes in thermopower and resistivity. The unusual thermopower behavior can be well described by the variations of electronic correlation. Possible approaches for further improvement of the thermoelectric performance in Ca(3)Co(4)O(9) and other relevant strongly correlated systems are also proposed at the end.
部门归属	[wang, yang; ren, peng; wang, lan; fan, hongjin] nanyang technol univ, sch phys & math sci, div phys & appl phys, singapore 637371, singapore. [wang, yang; sui, yu; wang, xianjie; su, wenhui] harbin inst technol, dept phys, ccmst, harbin 150001, peoples r china. [sui, yu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wang, y (reprint author), nanyang technol univ, sch phys & math sci, div phys & appl phys, 21 nanyang link, singapore 637371, singapore;wang_yang@ntu.edu.sg fanhj@ntu.edu.sg
关键词	Ca3co4o9 Thermopower Electron Substitution Transition Crystals Naxco2o4 System Heat Co
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31538
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,P. Ren,et al. Strongly Correlated Properties and Enhanced Thermoelectric Response in Ca(3)CO(4-x)M(x)O(9) (M = Fe, Mn, and Cu)[J]. Chemistry of Materials,2010,22(3):1155-1163.
APA	Y. Wang.,Y. Sui.,P. Ren.,L. Wang.,X. J. Wang.,...&H. J. Fan.(2010).Strongly Correlated Properties and Enhanced Thermoelectric Response in Ca(3)CO(4-x)M(x)O(9) (M = Fe, Mn, and Cu).Chemistry of Materials,22(3),1155-1163.
MLA	Y. Wang,et al."Strongly Correlated Properties and Enhanced Thermoelectric Response in Ca(3)CO(4-x)M(x)O(9) (M = Fe, Mn, and Cu)".Chemistry of Materials 22.3(2010):1155-1163.