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Marginal Fermi liquid resonance induced by a quantum magnetic impurity in d-wave superconductors
Zhang, GM; Hu, H; Yu, L; Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
2001
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号86期号:4页码:704-707
摘要We consider a model of an Anderson impurity embedded in a d(x2-y2)-wave superconducting state to describe the low-energy excitations of cuprate superconductors doped with a small amount of magnetic impurities. Because of the Dirac-like energy dispersion a sharp localized resonance above the Fermi energy, showing a marginal Fermi liquid behavior (omega ln omega as omega --> 0), is predicted for the impurity states. The same logarithmic dependence of self-energy and a linear frequency dependence of the relaxation rate are also derived for the conduction electrons, characterizing a new universality class for the strong coupling fixed point. At the resonant energies, the spatial distribution of the electron density of states around the magnetic impurity is also calculated. DOI: 10.1103/PhysRevLett.86.704.
部门归属Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Anderson Systems States
学科领域Physics
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收录类别SCI
WOS记录号WOS:000166539900037
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被引频次:32[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/311006/12826
专题1978-2010年知识产出
通讯作者Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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GB/T 7714
Zhang, GM,Hu, H,Yu, L,et al. Marginal Fermi liquid resonance induced by a quantum magnetic impurity in d-wave superconductors[J]. PHYSICAL REVIEW LETTERS,2001,86(4):704-707.
APA Zhang, GM,Hu, H,Yu, L,&Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(2001).Marginal Fermi liquid resonance induced by a quantum magnetic impurity in d-wave superconductors.PHYSICAL REVIEW LETTERS,86(4),704-707.
MLA Zhang, GM,et al."Marginal Fermi liquid resonance induced by a quantum magnetic impurity in d-wave superconductors".PHYSICAL REVIEW LETTERS 86.4(2001):704-707.
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