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Observation of the weak electronic correlations in KFeCoAs2(3d6): An isoelectronic to the parent compounds of 122 series of iron pnictides BaFe2As2
Liu, Z.H.1,2; Yaresko, A.N.3; Li, Y.4; Dai, P.C.4; Zhang, H.5; Büchner, B.1,6; Lin, C.T.3; Borisenko, S.V.1
2017
发表期刊Journal of Physics Condensed Matter
ISSN09538984
卷号29期号:8
摘要Using the angle-resolved photoemission spectroscopy and band structure calculations we study the electronic structure of KFeCoAs2, which is isoelectronic to the parent material of 122 series of iron-based superconductors BaFe2As2. Although band structure calculations predict nearly identical dispersions of the electronic states in both compounds, experiment reveals drastic differences in both the global renormalization and Fermi surfaces. On the basis of the comparison of electronic structures of these two isoelectronic compounds, we demonstrate local magnetic correlations as a vital role for the peculiar low-energy electron dynamics of iron-based superconductors. © 2017 IOP Publishing Ltd.
DOI10.1088/1361-648X/aa5486
EI入藏号20170703343714
EI主题词Potassium compounds
EI分类号933 Solid State Physics
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25552
专题中国科学院上海硅酸盐研究所
作者单位1.Institute for Solid State Research, IFW Dresden, Dresden; D-01171, Germany;
2.State Key Laboratory of Functional Materials for Informatic, SIMIT, Chinese Academy of Sciences, Shanghai; 200050, China;
3.Max Planck Institute for Solid State Research, Stuttgart; D-70569, Germany;
4.Department of Physics and Astronomy, Rice University, Houston; TX; 77005-1827, United States;
5.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
6.Institute for Solid State Physics, Technology University of Dresden, Dresden; D-01171, Germany
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Liu, Z.H.,Yaresko, A.N.,Li, Y.,et al. Observation of the weak electronic correlations in KFeCoAs2(3d6): An isoelectronic to the parent compounds of 122 series of iron pnictides BaFe2As2[J]. Journal of Physics Condensed Matter,2017,29(8).
APA Liu, Z.H..,Yaresko, A.N..,Li, Y..,Dai, P.C..,Zhang, H..,...&Borisenko, S.V..(2017).Observation of the weak electronic correlations in KFeCoAs2(3d6): An isoelectronic to the parent compounds of 122 series of iron pnictides BaFe2As2.Journal of Physics Condensed Matter,29(8).
MLA Liu, Z.H.,et al."Observation of the weak electronic correlations in KFeCoAs2(3d6): An isoelectronic to the parent compounds of 122 series of iron pnictides BaFe2As2".Journal of Physics Condensed Matter 29.8(2017).
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