ITP OpenIR  > SCI期刊论文
Liu, C. S.; Luo, H. G.; Wu, W. C.; Xiang, T.; Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
Two-band model of Raman scattering on electron-doped high-T(c) superconductors
Source PublicationPHYSICAL REVIEW B
KeywordHigh-temperature Superconductor Transport-properties Anisotropy Gap
AbstractWe have analyzed the B(1g) and B(2g) Raman spectra of electron-doped cuprate superconductors Nd(2-x)Ce(x)CuO(4) and Pr(2-x)Ce(x)CuO(4) using a weakly coupled two-band model. One of these two bands is centered around (+/-pi/2,+/-pi/2) and couples more strongly with the B(2g) mode, while the other is centered around (+/-pi,0) and (0,+/-pi) and couples more strongly with the B(1g) mode. This model explains in a natural way why the B(2g) Raman peak occurs at a higher frequency than the B(1g) one at optimal doping, and how these two peaks change with doping in agreement with experiments. The result thus supports that there are two kinds of quasiparticles in electron-doped cuprates and d(x)(2)-y(2)-wave superconductivity is driven by the holelike band and a proximity effect on the electronlike band.
2006
ISSN1098-0121
Volume73Issue:17Pages:-
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5991
CollectionSCI期刊论文
Corresponding AuthorLiu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Liu, C. S.,Luo, H. G.,Wu, W. C.,et al. Two-band model of Raman scattering on electron-doped high-T(c) superconductors[J]. PHYSICAL REVIEW B,2006,73(17):-.
APA Liu, C. S.,Luo, H. G.,Wu, W. C.,Xiang, T.,&Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).Two-band model of Raman scattering on electron-doped high-T(c) superconductors.PHYSICAL REVIEW B,73(17),-.
MLA Liu, C. S.,et al."Two-band model of Raman scattering on electron-doped high-T(c) superconductors".PHYSICAL REVIEW B 73.17(2006):-.
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