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题名: Competitions of magnetism and superconductivity in FeAs-based materials
作者: Yang Shuo ;  You Wen-Long ;  Gu Shi-Jian ;  Lin Hai-Qing
刊名: CHINESE PHYSICS B
出版日期: 2009
卷号: 18, 期号:6, 页码:2545-2550
关键词: LAYERED QUATERNARY COMPOUND ;  IRON-BASED SUPERCONDUCTORS ;  INSTABILITY ;  PHASE ;  MODEL
学科分类: Physics
通讯作者: Lin, HQ , Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
部门归属: [Yang, S; You, WL; Gu, SJ; Lin, HQ] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China; [Yang, S; You, WL; Gu, SJ; Lin, HQ] Chinese Univ Hong Kong, ITP, Hong Kong, Hong Kong, Peoples R China; [Yang, S] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Using the numerical unrestricted Hartree-Fock approach, we study the ground state of a two-orbital model describing newly discovered FeAs-based superconductors. We observe the competition of a (0, pi) mode spin-density wave and the superconductivity as the doping concentration changes. There might be a small region in the electron-doping side where the magnetism and superconductivity coexist. The superconducting pairing is found to be spin singlet, orbital even, and coexisting s(xy) + d(x2-y2) wave (even parity).
资助者: Earmarked Grant for Research[402205, HKU3/05C]
收录类别: SCI
WOS记录号: WOS:000266577300071
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5316
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yang Shuo,You Wen-Long,Gu Shi-Jian,et al. Competitions of magnetism and superconductivity in FeAs-based materials[J]. CHINESE PHYSICS B,2009,18(6):2545-2550.
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