c-Axis Penetration Depth in the Cuprates: Additional Evidence for Incoherent Hopping
| dc.creator | Radtke, R. J. | |
| dc.creator | Kostur, V. N. | |
| dc.date | 1995-09-26 | |
| dc.date.accessioned | 2026-07-07T03:07:56Z | |
| dc.date.available | 2026-07-07T03:07:56Z | |
| dc.description | Measurements of the $c$-axis penetration depth $λ_c$ in the cuprates reveal a low-temperature $T$ dependence which is inconsistent with simple models of coupling between the CuO$_2$ layers. In this paper, we examine whether a model based on {\it incoherent} hopping between the layers can account for this low-$T$ behavior. We compute $λ_c$ directly from linear response theory and compare our results with recent experimental measurements on $\rm YBa_2u_3O_{7-δ}$ as a function of temperature and doping. We find that the data can be reproduced within this model providing the inter-layer scattering is anisotropic and the pairing is $d$-wave. In addition, our calculations demonstrate that $1/λ_c^2$ is proportional to the $c$-axis critical current, which seems to be a generic feature in weakly coupled layered superconductors. | |
| dc.description | 7 pages, REVTeX, 3 uuencoded figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9509159 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9509159 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/27363 | |
| dc.subject | Condensed Matter | |
| dc.title | c-Axis Penetration Depth in the Cuprates: Additional Evidence for Incoherent Hopping | |
| dc.type | text |