The effective Kondo model for a trimer on a metallic surface
arXiv:cond-mat/0509495 · doi:10.1103/PhysRevLett.96.096804
Abstract
I consider a Hubbard-Anderson model which describes localized orbitals in three different atoms hybridized both among themselves and with a continuum of extended states (ES). Using a generalized Schrieffer-Wolf transformation, I derive an effective Kondo model for the interaction between the doublet ground state of the isolated trimer and the ES. For an isoceles trimer with distances a, l, l between the atoms, the Kondo temperature is negligigle for l < a and has a maximum for finite l > a when a is small. The results agree with experiments for a Cr trimer on Au(111). [T. Jamneala et al., Phys. Rev. Lett. 87, 256804 (2001)].
4 pages, 3 figures, to appear in Phys. Rev. Lett. Clarifications on the parameters used were added
References in corpus (7)
- Localized Magnetic States of Fe, Co, and Ni Impurities on Alkali Metal Films
- Mirages and many-body effects in quantum corrals
- Simple model for scanning tunneling spectroscopy of noble metal surfaces with adsorbed Kondo impurities
- Correlated adatom trimer on metal surface: A continuous time quantum Monte Carlo study
- Exotic Kondo effect from magnetic trimers
- Role of surface states in STM spectroscopy of (111) metal surfaces with Kondo adsorbates
- Kondo resonance for orbitally degenerate systems
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