| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1809819 | Physica B: Condensed Matter | 2014 | 6 Pages |
Abstract
A Green's function formalism is used to calculate the energy of impurity modes associated with one and/or two magnetic impurities in the one-dimensional Heisenberg XXZ magnetic chain. The system can be tuned from the Heisenberg to the Ising model varying a parameter λ. A numerical study is performed showing two types of localized modes (s and p). The modes depend on λ and the degeneracy of the acoustic modes is broken.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
J.M. Sousa, R.V. Leite, R.R. Landim, R.N. Costa Filho,