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Seebeck coefficient of Ln (x) Ca1-x MnO3 perovskites in paramagnetic state
Wang, Yang1,2; Sui, Yu2,3; Wang, Xianjie2; Su, Wenhui2,3
Corresponding AuthorWang, Yang(wang_yang@ntu.edu.sg)
2011-07-01
Source PublicationAPPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
ISSN0947-8396
Volume104Issue:1Pages:135-142
AbstractThe Seebeck coefficient is a function of carrier concentration and configurational entropy. In this report, we semi-theoretically investigate the Seebeck coefficient of Ln (x) Ca1-x MnO3 (Ln=Rare-earth) perovskites based on the electronic structure of the 3d orbitals of Mn ions, using the developed Heikes model, Boltzmann transport model, and diffusion model. The results show that the Seebeck coefficient of such a strongly correlated electron system in paramagnetic state is remarkably affected by site degeneracy. As temperature decreases, the evolution of the spin and orbital degrees of freedom together with the change in phonon scattering mode describes the Seebeck coefficient behavior satisfactorily. The phonon drag effect at low temperature is also discussed.
Funding OrganizationNational Natural Science Foundation of China
DOI10.1007/s00339-010-6081-6
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[50672019] ; National Natural Science Foundation of China[10804024]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000291652600020
PublisherSPRINGER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106492
Collection中国科学院金属研究所
Corresponding AuthorWang, Yang
Affiliation1.Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore
2.Harbin Inst Technol, Ctr Condensed Matter Sci & Technol CCMST, Dept Phys, Harbin 150001, Peoples R China
3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yang,Sui, Yu,Wang, Xianjie,et al. Seebeck coefficient of Ln (x) Ca1-x MnO3 perovskites in paramagnetic state[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2011,104(1):135-142.
APA Wang, Yang,Sui, Yu,Wang, Xianjie,&Su, Wenhui.(2011).Seebeck coefficient of Ln (x) Ca1-x MnO3 perovskites in paramagnetic state.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,104(1),135-142.
MLA Wang, Yang,et al."Seebeck coefficient of Ln (x) Ca1-x MnO3 perovskites in paramagnetic state".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 104.1(2011):135-142.
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