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Potassium doping effect on the lattice softening and electronic structure of Ba1-xKxFe2As2 probed by X-ray absorption spectroscopy
Cheng, J; Chu WS(储旺盛); Zhao HF(赵海峰); Xu W(徐伟); Zhou J(周建); Zhang LJ(张林娟); Wu ZY(吴自玉); Chu, WS; Wu, G; Zhao, HF; Xu, W; Zhou, J; Zhang, LJ; Chen, XH; Wu, ZY
2010
Source PublicationJOURNAL OF SYNCHROTRON RADIATION
Volume17Issue:6Pages:730-736
Corresponding Author[Cheng, J. ; Chu, W. S. ; Zhao, H. F. ; Xu, W. ; Zhou, J. ; Zhang, L. J. ; Wu, Z. Y.] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China ; [Cheng, J. ; Wu, Z. Y.] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China ; [Wu, G. ; Chen, X. H.] Univ Sci & Technol China, Dept Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
SubtypeArticle
AbstractBa1-x K (x) Fe2As2 superconducting samples (x = 0, 0.2, 0.4, 0.5) were synthesized by the solid-state reaction method. In this contribution the doping effect of potassium on the lattice dynamics in this newly discovered Ba1-x K (x) Fe2As2 superconductor has been investigated by extended X-ray absorption fine-structure spectroscopy. The analysis shows that with potassium doping an increased disorder in the iron layers is mainly related to the softening of the Fe-Fe bond. Information about the electronic structure of these materials has also been obtained by looking at the X-ray absorption near-edge structure spectra that point out the presence of holes in the Fe-3d/As-4p hybridized orbital of the BaFe2As2-based system.
KeywordEXAFS XANES Ba1-x K (x) Fe2As2
Subject AreaInstruments & Instrumentation; Optics; Physics
DOI10.1107/S0909049510038756
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaInstruments & Instrumentation ; Optics ; Physics
WOS SubjectInstruments & Instrumentation ; Optics ; Physics, Applied
WOS IDWOS:000283599600003
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/238374
Collection多学科研究中心
加速器中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Cheng, J,Chu WS,Zhao HF,et al. Potassium doping effect on the lattice softening and electronic structure of Ba1-xKxFe2As2 probed by X-ray absorption spectroscopy[J]. JOURNAL OF SYNCHROTRON RADIATION,2010,17(6):730-736.
APA Cheng, J.,储旺盛.,赵海峰.,徐伟.,周建.,...&Wu, ZY.(2010).Potassium doping effect on the lattice softening and electronic structure of Ba1-xKxFe2As2 probed by X-ray absorption spectroscopy.JOURNAL OF SYNCHROTRON RADIATION,17(6),730-736.
MLA Cheng, J,et al."Potassium doping effect on the lattice softening and electronic structure of Ba1-xKxFe2As2 probed by X-ray absorption spectroscopy".JOURNAL OF SYNCHROTRON RADIATION 17.6(2010):730-736.
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