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Incoherence-coherence crossover and low-temperature Fermi-liquid-like behavior in AFe(2)As(2) (A = K, Rb, Cs): evidence from electrical transport properties

文献类型：期刊论文

作者Xiang, Z. J.1,2,3; Wang, N. Z.1,2,3; Wang, A. F.1,2,3; Zhao, D.1,2,3; Sun, Z. L.1,2,3; Luo, X. G.1,2,3,5; Wu, T.1,2,3,5; Chen, X. H.1,2,3,4,5
刊名JOURNAL OF PHYSICS-CONDENSED MATTER
出版日期2016-10-26
卷号28期号:42页码:1-8
关键词Iron-based Superconductors Kondo Physics Electron Correlation
DOI10.1088/0953-8984/28/42/425702
文献子类Article
英文摘要We study the normal-state transport properties of AFe(2)As(2) (A = K, Rb and Cs) single crystals using Hall coefficient, resistivity and magnetoresistance (MR) measurements. In all three materials, the Hall coefficient R-H shows a strong temperature dependence, which is typical for multi-band systems. In particular, R-H develops an upturn below a characteristic temperature T*, which is in agreement with the incoherence-coherence crossover reported in recent nuclear magnetic resonance studies. A Fermi-liquid-like state, characterized by T-2 behavior of the resistivity and a positive orbital MR obeying Kohler's rule, emerges below T-FL similar to 0.4 T*. The superconducting transition temperature T-c experiences a simultaneous suppression with T-* and T-FL as the alkali ion's radius increases from A = K to A = Cs, suggesting that the unconventional superconductivity in the AFe(2)As(2) series is related to the strength of the electronic coherence. A phase diagram, similar to that in the heavy fermion Kondo lattice system, is obtained. Based on all the experimental evidence, we argue that the physical properties of this family of heavily hole-doped Fe-based superconductors are controlled by the hybridization between itinerant carriers and localized orbitals, and the Kondo scenario could be effective in such a case.
WOS关键词IRON CHALCOGENIDES ; MAGNETORESISTANCE ; SUPERCONDUCTORS ; MAGNETISM ; PNICTIDES
WOS研究方向Physics
语种英语
WOS记录号WOS:000384133000001
资助机构National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; National Natural Science Foundation of China(11190021 ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; 'Strategic Priority Research Program (B)' of the Chinese Academy of Sciences(XDB04040100) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; National Basic Research Program of China (973 Program)(2012CB922002) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; Hefei Science Center CAS(2016HSC-IU001) ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 11534010 ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303) ; 91422303)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/24733]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Univ Sci & Technol China, Chinese Acad Sci, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Chinese Acad Sci, Dept Phys, Hefei 230026, Anhui, Peoples R China
3.Univ Sci & Technol China, Chinese Acad Sci, Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Anhui, Peoples R China
4.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Xiang, Z. J.,Wang, N. Z.,Wang, A. F.,et al. Incoherence-coherence crossover and low-temperature Fermi-liquid-like behavior in AFe(2)As(2) (A = K, Rb, Cs): evidence from electrical transport properties[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2016,28(42):1-8.
APA Xiang, Z. J..,Wang, N. Z..,Wang, A. F..,Zhao, D..,Sun, Z. L..,...&Chen, X. H..(2016).Incoherence-coherence crossover and low-temperature Fermi-liquid-like behavior in AFe(2)As(2) (A = K, Rb, Cs): evidence from electrical transport properties.JOURNAL OF PHYSICS-CONDENSED MATTER,28(42),1-8.
MLA Xiang, Z. J.,et al."Incoherence-coherence crossover and low-temperature Fermi-liquid-like behavior in AFe(2)As(2) (A = K, Rb, Cs): evidence from electrical transport properties".JOURNAL OF PHYSICS-CONDENSED MATTER 28.42(2016):1-8.

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来源：合肥物质科学研究院

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