The pseudogap Fermi-Bose Kondo model
| dc.creator | Vojta, Matthias | |
| dc.creator | Kircan, Marijana | |
| dc.date | 2002-09-26 | |
| dc.date | 2003-04-17 | |
| dc.date.accessioned | 2026-07-07T02:47:26Z | |
| dc.date.available | 2026-07-07T02:47:26Z | |
| dc.description | We consider a magnetic impurity coupled to both fermionic quasiparticles with a pseudogap density of states and bosonic spin fluctuations. Using renormalization group and large-N calculations we investigate the phase diagram of the resulting Fermi-Bose Kondo model. We show that the Kondo temperature is strongly reduced by low-energy spin fluctuations, and make connections to experiments in cuprate superconductors. Furthermore we derive an exact exponent for the critical behavior of the conduction electron T matrix, and propose our findings to be relevant for certain scenarios of local quantum criticality in heavy-fermion metals. | |
| dc.description | 4 pages, 3 figs, (v2) conclusions regarding EDMFT modified, (v3) final version as published | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0209596 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0209596 | |
| dc.identifier | Phys. Rev. Lett. 90, 157203 (2003) | |
| dc.identifier | doi:10.1103/PhysRevLett.90.157203 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20011 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | The pseudogap Fermi-Bose Kondo model | |
| dc.type | text |