1999/11/30 by Hiroki Tsuchiura, Yukio Tanaka, Masao Ogata +1 · 1 citation
Materials Science · Physics and Astronomy · #Anderson impurity model #Atomic physics #Condensed matter physics #Connection (principal bundle) #Density of states #Geometry #Impurity #Iron-based superconductors research #Local density of states #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum tunnelling #Rare-earth and actinide compounds #Resonance (particle physics) #Spectroscopy #Spin (aerodynamics) #Thermodynamics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.84.3165
published as Phys. Rev. Lett. 84, 3165 (2000) · 4 pages, 3 figures, to appear in Phys. Rev. Lett
arxiv created 2000/02/23 · openalex publication_date 2000/04/03 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The local density of states (LDOS) around a magnetic impurity in high- T(c) superconductors is studied using the two-dimensional t-J model with a realistic band structure. The order parameters are determined in a self-consistent way within the Gutzwiller approximation and the Bogoliubov-de Gennes theory. In sharp contrast with the nonmagnetic impurity case, the LDOS near the magnetic impurity shows two resonance peaks reflecting the presence of spin-dependent resonance states. It is also shown that these resonance states are approximately localized around the impurity. The present results have an immediate connection with the scanning tunneling spectroscopy observation of Bi2Sr2Ca(Cu1-xNi[Zn](x))(2)O(8+delta).