Mar, 2007
Heavy fermion state in the periodic Anderson-Holstein model away from half filling
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
- ,
- Volume
- 310
- Number
- 2
- First page
- 419
- Last page
- 421
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/j.jmmm.2006.10.257
- Publisher
- ELSEVIER SCIENCE BV
We investigate the electronic state of the periodic Anderson-Holstein model, which includes both the electron-electron Coulomb interaction and the electron-phonon coupling, away from half filling. The model is solved by using the dynamical mean-field theory combined with the exact diagonalization method. The heavy fermion state with large effective mass due to the electron-phonon coupling is realized in the wide range of the f-electron number n(f), while that due to the Coulomb interaction is realized in the narrow range of n(f)similar to 1. (c) 2006 Elsevier B.V. All rights reserved.
- Link information
- ID information
-
- DOI : 10.1016/j.jmmm.2006.10.257
- ISSN : 0304-8853
- Web of Science ID : WOS:000247666000080