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Strikingly dissimilar effect of Mn and Zn dopants imposed on local structural distortion of Ba0.5K0.5Fe2As2 superconductor
Cheng, J; Dong, P; Chu WS(储旺盛); Chu, WS; Xu, W; Wen, HH; Marcelli, A; Wu, ZY;; Xu W(徐伟); Wu ZY(吴自玉)
2013
Source PublicationJOURNAL OF SYNCHROTRON RADIATION
ISSN0909-0495
EISSN1600-5775
Volume20Issue:3Pages:455-459
AbstractTo clarify the contrasting impurity effects of Mn and Zn dopants on the critical temperature of optimally doped Ba0.5K0.5Fe2As2 superconductors, extended X-ray absorption fine-structure spectroscopy was implemented at the Fe and As K-edge. In Mn-doped compounds a gradual deviation of the symmetric FeAs4 tetrahedron and weakening of the Fe-As bond was observed. Conversely, in Zn-doped compounds the perfect FeAs4 tetrahedron is maintained and the Fe-As bond is rigid. The local structural details are consistent with the development of superconductivity in these two systems, suggesting a significant role played by the topology of the FeAs4 tetrahedron and rigidness of the Fe-As bond in Mn/Zn-doped Ba0.5K0.5Fe2As2 superconductors.
KeywordEXAFS local structural distortion iron-based superconductor
Subject AreaInstruments & Instrumentation; Optics; Physics
DOI10.1107/S0909049513002781
Indexed BySCI
Language英语
WOS IDWOS:000317604800009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/223986
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Cheng, J,Dong, P,Chu WS,et al. Strikingly dissimilar effect of Mn and Zn dopants imposed on local structural distortion of Ba0.5K0.5Fe2As2 superconductor[J]. JOURNAL OF SYNCHROTRON RADIATION,2013,20(3):455-459.
APA Cheng, J.,Dong, P.,储旺盛.,Chu, WS.,Xu, W.,...&吴自玉.(2013).Strikingly dissimilar effect of Mn and Zn dopants imposed on local structural distortion of Ba0.5K0.5Fe2As2 superconductor.JOURNAL OF SYNCHROTRON RADIATION,20(3),455-459.
MLA Cheng, J,et al."Strikingly dissimilar effect of Mn and Zn dopants imposed on local structural distortion of Ba0.5K0.5Fe2As2 superconductor".JOURNAL OF SYNCHROTRON RADIATION 20.3(2013):455-459.
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