Enhanced electron correlation in rare-earth doped Ca(3)Co(4)O(9)

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	Enhanced electron correlation in rare-earth doped Ca(3)Co(4)O(9)
	Y. Wang; L. X. Xu; Y. Sui; X. J. Wang; J. G. Cheng; W. H. Su
	2010
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	97 期号:6
摘要	Thermoelectric and thermodynamic properties of a series of Ca-site rare-earth R(3+) doped Ca(3)Co(4)O(9) were investigated. For a fixed doping level, with the reduction in R(3+) radius, thermopower is found to gradually increase despite the carrier concentration remains unchanged. The scaling behavior between thermopower and electron specific heat coefficient reveals that the additional increase in thermopower originates from enhanced electron correlation which may be attributed to doping-induced chemical pressure. (C) 2010 American Institute of Physics. [doi:10.1063/1.3479923]
部门归属	[wang, yang; sui, yu; wang, xianjie; cheng, jinguang; su, wenhui] harbin inst technol, ccmst, dept phys, harbin 150001, peoples r china. [wang, yang] nanyang technol univ, sch phys & math sci, div phys & appl phys, singapore 637371, singapore. [xu, luxiang] sichuan normal univ, inst solid state phys, lab low dimens struct phys, chengdu 610068, peoples r china. [xu, luxiang] sichuan normal univ, sch phys & elect engn, chengdu 610068, peoples r china. [sui, yu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wang, y (reprint author), harbin inst technol, ccmst, dept phys, harbin 150001, peoples r china;wang_yang@ntu.edu.sg suiyu@hit.edu.cn
关键词	Calcium Compounds Carrier Density Doping Profiles Electron Correlations Rare Earth Metals Specific Heat Thermoelectric Power Misfit-layered Cobaltite Thermoelectric Properties System Substitution Transition Transport Ceramics
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31545
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Wang,L. X. Xu,Y. Sui,et al. Enhanced electron correlation in rare-earth doped Ca(3)Co(4)O(9)[J]. Applied Physics Letters,2010,97(6).
APA	Y. Wang,L. X. Xu,Y. Sui,X. J. Wang,J. G. Cheng,&W. H. Su.(2010).Enhanced electron correlation in rare-earth doped Ca(3)Co(4)O(9).Applied Physics Letters,97(6).
MLA	Y. Wang,et al."Enhanced electron correlation in rare-earth doped Ca(3)Co(4)O(9)".Applied Physics Letters 97.6(2010).