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Tuning of magnetic interaction and transport properties of Ca3Co2O6 through Sm-doping
Song, J. Y.1,2; Zhao, B. C.1; Huang, Y. N.1; Qin, Y. F.1,2; Zhou, J. F.1,2; Song, W. H.1; Sun, Y. P.1,3,4
2017-02-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume695Issue:Pages:2506-2512
AbstractThe structure, magnetic and transport properties of quasi-one-dimensional spin chain compounds Ca3-xSmxCo2O6 (0 <= x <= 0.8) were investigated. It is found that the intra-chain magnetic exchange coupling constant J and Weiss temperature theta decrease considerably with increasing Sm-doping content x and the sign of J and theta changes from positive to negative as x reaches to 0.6. The result shows that the dominated intra-chain magnetic coupling can be changed from ferromagnetic (FM) to antiferromagnetic (AFM) by Sm-doping. Moreover, the magnetic ground state of Ca3Co2O6 is changed from the spin density wave (SDW) phase to AFM state in Sm-doped samples. The resistivity decreases sharply first with a small amount of Sm-doping and then increases slightly as x increases further, which is a result of the competing effect between carrier concentration variations and lattice distortion. The thermopower has a similar variation trend with that of resistivity. The increased carrier concentration and enhanced spin entropy may be the origin of the change of the thermopower. (C) 2016 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordQuasi-one-dimensional System Ca3co2o6 Magnetic Interaction Thermopower
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding OrganizationNational Nature Science Foundation of China(U1232140 ; 11504380 ; 11174293) ; National Nature Science Foundation of China(U1232140 ; 11504380 ; 11174293)
DOI10.1016/j.jallcom.2016.11.152
WOS KeywordONE-DIMENSIONAL CA3CO2O6 ; SINGLE-CRYSTAL ; TRIANGULAR-LATTICE ; COMPOUND CA3CO2O6 ; TEMPERATURE ; MANGANITES ; CHAINS
Indexed BySCI
Language英语
Funding OrganizationNational Nature Science Foundation of China(U1232140 ; 11504380 ; 11174293) ; National Nature Science Foundation of China(U1232140 ; 11504380 ; 11174293)
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000391817600315
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/32779
Collection中科院固体物理研究所
Affiliation1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
4.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Song, J. Y.,Zhao, B. C.,Huang, Y. N.,et al. Tuning of magnetic interaction and transport properties of Ca3Co2O6 through Sm-doping[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,695(无):2506-2512.
APA Song, J. Y..,Zhao, B. C..,Huang, Y. N..,Qin, Y. F..,Zhou, J. F..,...&Sun, Y. P..(2017).Tuning of magnetic interaction and transport properties of Ca3Co2O6 through Sm-doping.JOURNAL OF ALLOYS AND COMPOUNDS,695(无),2506-2512.
MLA Song, J. Y.,et al."Tuning of magnetic interaction and transport properties of Ca3Co2O6 through Sm-doping".JOURNAL OF ALLOYS AND COMPOUNDS 695.无(2017):2506-2512.
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