Fermi Surface Reconstruction without Breakdown of Kondo Screening at Quantum Critical Point
| dc.creator | Watanabe, Hiroshi | |
| dc.creator | Ogata, Masao | |
| dc.date | 2007-04-13 | |
| dc.date.accessioned | 2026-07-07T08:31:56Z | |
| dc.date.available | 2026-07-07T08:31:56Z | |
| dc.description | Motivated by recent Hall-effect experiment in YbRh$_2$Si$_2$, we study ground state properties of a Kondo lattice model in a two-dimensional square lattice using variational Monte Carlo method. We show that there are two types of phase transition, antiferromagnetic transition and topological one (Fermi surface reconstruction). In a wide region of parameters, these two transitions occur simultaneously without the breakdown of Kondo screening, accompanied by a discontinuous change of the Hall coefficient. This result is consistent with the experiment and gives a novel theoretical picture for the quantum critical point in heavy fermion systems. | |
| dc.description | 4 pages, 3 figures, submitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/0704.1722 | |
| dc.identifier | http://arxiv.org/abs/0704.1722 | |
| dc.identifier | Phys. Rev. Lett. 99, 136401 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.99.136401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/138651 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Fermi Surface Reconstruction without Breakdown of Kondo Screening at Quantum Critical Point | |
| dc.type | text |