Universality of the single-particle spectra of cuprate superconductors
| dc.creator | Zhu, Lijun | |
| dc.creator | Aji, Vivek | |
| dc.creator | Shekhter, Arkady | |
| dc.creator | Varma, C. M. | |
| dc.date | 2007-02-07 | |
| dc.date | 2008-01-09 | |
| dc.date.accessioned | 2026-07-07T12:12:09Z | |
| dc.date.available | 2026-07-07T12:12:09Z | |
| dc.description | All the available data for the dispersion and linewidth of the single-particle spectra above the superconducting gap and the pseudogap in metallic cuprates for any doping has universal features. The linewidth is linear in energy below a scale $ω_c$ and constant above. The cusp in the linewidth at $ω_c$ mandates, due to causality, a "waterfall", i.e., a vertical feature in the dispersion. These features are predicted by a recent microscopic theory. We find that all data can be quantitatively fitted by the theory with a coupling constant $λ_0$ and an upper cutoff at $ω_c$ which vary by less than 50% among the different cuprates and for varying dopings. The microscopic theory also gives these values to within factors of O(2). | |
| dc.description | 4 pages, 4 figures; accepted by Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0702187 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0702187 | |
| dc.identifier | PRL 100, 057001 (2008) | |
| dc.identifier | doi:10.1103/PhysRevLett.100.057001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/210454 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Universality of the single-particle spectra of cuprate superconductors | |
| dc.type | text |