Valence Fluctuation Driven Non-Fermi LIquid Behavior and Unconventional Superconductivity in Pressurized CeCu_{2}Si_{2}
| dc.creator | Laad, Mukul S. | |
| dc.date | 2008-05-14 | |
| dc.date.accessioned | 2026-07-07T09:38:51Z | |
| dc.date.available | 2026-07-07T09:38:51Z | |
| dc.description | I study an Extended Periodic Anderson Model (EPAM) with non-local hybridisation, $V_{fc}$, and a coulomb interaction, $U_{fc}$, between localised $f$ electrons and wide band conduction ($c$) electrons. Within DMFT, a quantum phase transition (QPT) driven by soft $f$-valence fluctuations, accompanied by a discontinuous jump in the Fermi volume, is found as $V_{fc}$ is tuned across a critical value. Near the associated QCP, an unconventional superconductive instability, driven by these extended, singular valence fluctuations, naturally emerges. {\it All} these phenomena are representative of observations in pressurised $CeCu_{2}Si_{2}$. | |
| dc.description | 4 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/0805.2115 | |
| dc.identifier | http://arxiv.org/abs/0805.2115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160964 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Valence Fluctuation Driven Non-Fermi LIquid Behavior and Unconventional Superconductivity in Pressurized CeCu_{2}Si_{2} | |
| dc.type | text |