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Superconductivity mediated by the antiferromagnetic spin wave in chalcogenide iron-based superconductors
Zhang, GM; Lu, ZY; Xiang, T; Zhang, GM (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
2011
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号84期号:5页码:52502
摘要The ground state of K(0.8+x)Fe(1.6+y)Se(2) and other iron-based selenide superconductors are doped antiferromagnetic semiconductors. We propose that the low energy physics of this system is governed by a model Hamiltonian of interacting electrons with onsite ferromagnetic exchange interactions and intersite superexchange interactions. We have derived the effective pairing potential of electrons under the linear spin-wave approximation and shown that the superconductivity can be driven by mediating coherent spin-wave excitations in these materials. Our work provides a natural account for the coexistence of superconducting and antiferromagnetic long range orders observed by neutron scattering and other experiments.
部门归属[Zhang, G. M.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Lu, Z. Y.] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China; [Xiang, T.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Xiang, T.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Coexistence
学科领域Physics
资助者NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China
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收录类别SCI
语种英语
资助者NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China ; NSFC; MOST of China
WOS记录号WOS:000293553100002
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14293
专题理论物理所SCI论文
通讯作者Zhang, GM (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
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GB/T 7714
Zhang, GM,Lu, ZY,Xiang, T,et al. Superconductivity mediated by the antiferromagnetic spin wave in chalcogenide iron-based superconductors[J]. PHYSICAL REVIEW B,2011,84(5):52502.
APA Zhang, GM,Lu, ZY,Xiang, T,&Zhang, GM .(2011).Superconductivity mediated by the antiferromagnetic spin wave in chalcogenide iron-based superconductors.PHYSICAL REVIEW B,84(5),52502.
MLA Zhang, GM,et al."Superconductivity mediated by the antiferromagnetic spin wave in chalcogenide iron-based superconductors".PHYSICAL REVIEW B 84.5(2011):52502.
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