Temperature dependence of the nodal Fermi velocity in layered cuprates
| dc.creator | Chubukov, Andrey | |
| dc.creator | Eremin, Ilya | |
| dc.date | 2008-07-26 | |
| dc.date.accessioned | 2026-07-07T10:03:56Z | |
| dc.date.available | 2026-07-07T10:03:56Z | |
| dc.description | We explain recently observed linear temperature dependence of the nodal Fermi velocity $v_F (T)$ in near-optimally doped cuprates. We argue that it originates from electron-electron interaction, and is a fundamental property of an arbitrary 2D Fermi liquid. We consider a spin-fermion model with the same parameters as in earlier studies, and show that the T term is about 30% at 300K, in agreement with the data. We show that the sub-leading term in $v_F (T)$ is a regular (and small) $T^2$ correction. We also show that at a $2k_F$ quantum-critical point, temperature corrections to the dispersion are singular. | |
| dc.description | 5 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0807.4244 | |
| dc.identifier | http://arxiv.org/abs/0807.4244 | |
| dc.identifier | Phys. Rev. B 78, 060509(R) (2008) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/169479 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Temperature dependence of the nodal Fermi velocity in layered cuprates | |
| dc.type | text |