Coherence and metamagnetism in the two-dimensional Kondo lattice model
| dc.creator | Beach, K. S. D. | |
| dc.creator | Assaad, F. F. | |
| dc.date | 2008-02-07 | |
| dc.date.accessioned | 2026-07-07T09:42:00Z | |
| dc.date.available | 2026-07-07T09:42:00Z | |
| dc.description | We report the results of dynamical mean field calculations for the metallic Kondo lattice model subject to an applied magnetic field. High-quality spectral functions reveal that the picture of rigid, hybridized bands, Zeeman-shifted in proportion to the field strength, is qualitatively correct. We find evidence of a zero-temperature magnetization plateau, whose onset coincides with the chemical potential entering the spin up hybridization gap. The plateau appears at the field scale predicted by (static) large-N mean field theory and has a magnetization value consistent with that of x=1-n_c spin-polarized heavy holes, where n_c < 1 is the conduction band filling of the noninteracting system. We argue that the emergence of the plateau at low temperature marks the onset of quasiparticle coherence. | |
| dc.description | 8 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/0802.1066 | |
| dc.identifier | http://arxiv.org/abs/0802.1066 | |
| dc.identifier | Phys. Rev. B 77, 205123 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.77.205123 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/162028 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Coherence and metamagnetism in the two-dimensional Kondo lattice model | |
| dc.type | text |