Chin. Phys. Lett.  2014, Vol. 31 Issue (06): 067404    DOI: 10.1088/0256-307X/31/6/067404
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Consistency between Itinerant and Local-Moment Pictures for Superconductivity in Alkaline Iron Selenide Superconductors
LI Hai-Chao, XIANG Yuan-Yuan, WANG Qiang-Hua**
National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093
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LI Hai-Chao, XIANG Yuan-Yuan, WANG Qiang-Hua 2014 Chin. Phys. Lett. 31 067404
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Abstract We study the superconducting pairing in an effective one-orbital model for alkaline iron-selenide superconductors. In both itinerant and local-moment pictures, we find that the nearest-neighbor hopping t1 plays a crucial role. The pairing symmetry changes from s-wave to d-wave as t1 is enhanced. For a reasonable t1 relevant to the experiment, the pairing symmetry is s-wave in both pictures, in agreement with the angle-resolved photo-emission. The results resolve the previous theoretical inconsistency in the two pictures.
Published: 26 May 2014
PACS:  74.20.Rp (Pairing symmetries (other than s-wave))  
  74.70.-b (Superconducting materials other than cuprates)  
  71.27.+a (Strongly correlated electron systems; heavy fermions)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/6/067404       OR      https://cpl.iphy.ac.cn/Y2014/V31/I06/067404
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LI Hai-Chao
XIANG Yuan-Yuan
WANG Qiang-Hua
[1] Mazin I I et al 2008 Phys. Rev. Lett. 101 057003
[2] Chubukov A V, Efremov D V and Eremin I 2008 Phys. Rev. B 78 134512
[3] Yu S L and Li J X 2013 Chin. Phys. B 22 87411
[4] Maiti S et al 2011 Phys. Rev. B 84 224505
[5] Seo K, Bernevig A and Hu J P 2008 Phys. Rev. Lett. 101 206404
[6] Guo J G et al 2010 Phys. Rev. B 82 180520
[7] Wang F et al 2011 Europhys. Lett. 93 57003
[8] Wang X P et al 2012 Europhys. Lett. 99 67001
[9] Xu M et al 2012 Phys. Rev. B 85 220504
[10] Mazin I I 2011 Phys. Rev. B 84 024529
[11] Fang C et al 2011 Phys. Rev. X 1 011009
[12] Ma T X, Lin H Q and Hu J P 2013 Phys. Rev. Lett. 110 107002
[13] Wetterich C 1991 Nucl. Phys. B 352 529
[14] Salmhofer M and Honerkamp C 2001 Prog. Theor. Phys. 105 1
[15] Wang F et al 2009 Phys. Rev. Lett. 102 047005
[16] Wang W S et al 2012 Phys. Rev. B 85 035414
[17] Xiang Y Y et al 2012 Phys. Rev. B 86 134508
[18] Xiang Y Y et al 2013 Phys. Rev. B 88 104516
[19] Xiang Y Y et al 2012 Phys. Rev. B 86 024523
[20] Wang W S et al 2013 Phys. Rev. B 87 115135
[21] Yang Y et al 2013 Phys. Rev. B 88 094519
[22] Qian T et al 2011 Phys. Rev. Lett. 106 187001
[23] Wang X P et al 2011 Europhys. Lett. 93 57001
[24] You Y Z et al 2011 Phys. Rev. Lett. 107 167001
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