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  4. 中科院固体物理研究所
Magnetic/structural phase diagram and zero temperature coefficient of resistivity in GaCFe3-xCox (0 <= x <= 3.0)

文献类型：期刊论文

作者Kan, X. C.1,2; Wang, B. S.1; Lin, S.1; Yuan, B.1; Zu, L.1,2; Wang, X. F.1,2; Lin, J. C.1; Tong, P.1; Song, W. H.1; Sun, Y. P.1,3,4
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2016-04-05
卷号663期号:无页码:94-99
关键词Magnetic/structural Phase Diagram Antiperovskite Zero Tcr
DOI10.1016/j.jallcom.2015.12.156
文献子类Article
英文摘要Magnetic/structural phase diagram of GaCFe3-xCox (0 <= x <= 3.0) were investigated systematically. It was found that the antiperovskite phase collapses at x = 0.90 and recovers again at x = 2.3 with Co doping. Along with this transformation, the ferromagnetic state in GaCFe3 is suppressed and replaced by the reentrant spin-glass state (2.3 <= x <= 2.6) or enhanced magnetic fluctuations (2.7 <= x <= 3.0). Ac susceptibility and magnetic relaxation were adopted to validate this spin-glass state for x = 2.5. It indicates that the contractive lattice as well as the resultant enhanced magnetic couplings may be an important origin of the collapsed antiperovskite structure. Zero temperature coefficient of resistivity (TCR) was achieved by Co-doping where the sign of TCR changes from positive to negative across the room temperature. The optimized TCR 0.0346 ppm/K spanning 110 K are three orders of magnitude smaller than those of CuNMn3 or GaCFe3. The physical mechanism was discussed. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词SPIN-GLASS ; TRANSITION ; COMPOUND
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000369060200014
资助机构National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Natural Science Foundation of China(51001094 ; National Natural Science Foundation of China(51001094 ; National Natural Science Foundation of China(51001094 ; National Natural Science Foundation of China(51001094 ; National Natural Science Foundation of China(51001094 ; National Natural Science Foundation of China(51001094 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22125]  
专题合肥物质科学研究院_中科院固体物理研究所
合肥物质科学研究院_中科院强磁场科学中心
作者单位1.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
推荐引用方式
GB/T 7714		 Kan, X. C.,Wang, B. S.,Lin, S.,et al. Magnetic/structural phase diagram and zero temperature coefficient of resistivity in GaCFe3-xCox (0 <= x <= 3.0)[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,663(无):94-99.
APA Kan, X. C..,Wang, B. S..,Lin, S..,Yuan, B..,Zu, L..,...&Sun, Y. P..(2016).Magnetic/structural phase diagram and zero temperature coefficient of resistivity in GaCFe3-xCox (0 <= x <= 3.0).JOURNAL OF ALLOYS AND COMPOUNDS,663(无),94-99.
MLA Kan, X. C.,et al."Magnetic/structural phase diagram and zero temperature coefficient of resistivity in GaCFe3-xCox (0 <= x <= 3.0)".JOURNAL OF ALLOYS AND COMPOUNDS 663.无(2016):94-99.

入库方式： OAI收割

来源：合肥物质科学研究院

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