Nexus between quantum criticality and the chemical potential pinning in high-$T_c$ cuprates
| dc.creator | Kopec, Tadeusz K. | |
| dc.date | 2005-05-04 | |
| dc.date | 2005-10-10 | |
| dc.date.accessioned | 2026-07-07T06:37:45Z | |
| dc.date.available | 2026-07-07T06:37:45Z | |
| dc.description | For strongly correlated electrons the relation between total number of charge carriers $n_e$ and the chemical potential $μ$ reveals for large Coulomb energy the apparently paradoxical pinning of $μ$ within the Mott gap, as observed in high-$T_c$ cuprates. By unravelling consequences of the non-trivial topology of the charge gauge U(1) group and the associated ground state degeneracy we found a close kinship between the pinning of $μ$ and the zero-temperature divergence of the charge compressibility $κ\sim\partial n_e/\partialμ$, which marks a novel quantum criticality governed by topological charges rather than Landau principle of the symmetry breaking. | |
| dc.description | 4+ pages, 2 figures, typos corrected, version as published | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0505100 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0505100 | |
| dc.identifier | Phys. Rev. B 72, 060513R (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.72.060513 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/100502 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Nexus between quantum criticality and the chemical potential pinning in high-$T_c$ cuprates | |
| dc.type | text |