ITP OpenIR  > 理论物理所科研产出  > SCI论文
Xiang, T; Su, YH; Panagopoulos, C; Su, ZB; Yu, L; Xiang, T , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Microscopic hamiltonian for Zn- or Ni-substituted high-temperature cuprate superconductors
Source PublicationPHYSICAL REVIEW B
KeywordD-wave Superconductors Resonant Impurity Scattering T-c Superconductors Magnetic-impurities Superfluid Response Oxides State Atoms bi2sr2cacu2o8+delta Transition
AbstractWe have derived the effective low-energy Hamiltonian for Zn- or Ni-substituted high-T-c cuprates from microscopic three-band models consisting of the most relevant Cu or impurity 3d and O 2p orbitals. We find that both the scattering potential and hopping integral induced by impurities have a finite range but decay very fast with distance from the impurity. The Zn scattering potential is very strong and attractive for electrons. The Ni scattering potential is much weaker than the Zn case, resulting from the hybridization between Ni ions and O holes. This profound difference is due to neither the electric charge nor d-level location, but rather because of the interplay between the valence state of the impurity and the strong correlation background. It gives a natural account of the unusual effect of Ni and Zn on the reduction of the superconducting transition temperature. The interlayer hopping of electrons is highly anisotropic and nonlocal, determined by the in-plane electronic structure. This leads to a quantum interference of states from different sites and affects strongly the scanning tunneling spectrum perpendicular to CuO2 planes.
2002
ISSN1098-0121
Volume66Issue:17Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13407
Collection理论物理所科研产出_SCI论文
Corresponding AuthorXiang, T , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Xiang, T,Su, YH,Panagopoulos, C,et al. Microscopic hamiltonian for Zn- or Ni-substituted high-temperature cuprate superconductors[J]. PHYSICAL REVIEW B,2002,66(17):-.
APA Xiang, T,Su, YH,Panagopoulos, C,Su, ZB,Yu, L,&Xiang, T , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2002).Microscopic hamiltonian for Zn- or Ni-substituted high-temperature cuprate superconductors.PHYSICAL REVIEW B,66(17),-.
MLA Xiang, T,et al."Microscopic hamiltonian for Zn- or Ni-substituted high-temperature cuprate superconductors".PHYSICAL REVIEW B 66.17(2002):-.
Files in This Item:
File Name/Size DocType Version Access License
Microscopic Hamilton(60KB) 开放获取LicenseApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiang, T]'s Articles
[Su, YH]'s Articles
[Panagopoulos, C]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiang, T]'s Articles
[Su, YH]'s Articles
[Panagopoulos, C]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiang, T]'s Articles
[Su, YH]'s Articles
[Panagopoulos, C]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.