Superconducting Density of States from the Magnetic Penetration Depth of Electron-Doped Cuprates La_{2-x}Ce_xCuO_{4-y} and Pr_{2-x}Ce_xCuO_{4-y}
| dc.creator | Skint, John A. | |
| dc.creator | Kim, Mun-Seog | |
| dc.creator | Lemberger, Thomas R. | |
| dc.creator | Greibe, T. | |
| dc.creator | Naito, M. | |
| dc.date | 2003-01-13 | |
| dc.date.accessioned | 2026-07-07T02:49:07Z | |
| dc.date.available | 2026-07-07T02:49:07Z | |
| dc.description | From measurements of the magnetic penetration depth, $λ(T)$, from 1.6 K to $T_c$ in films of electron-doped cuprates La$_{2-x}$Ce$_x$CuO$_{4-y}$ and Pr$_{2-x}$Ce$_x$CuO$_{4-y}$ we obtain the normalized density of states, $N_s(E)$ at T=0 by using a simple model. In this framework, the flat behavior of $λ^{-2}(T)$ at low $T$ implies $N_s(E)$ is small, possibly gapped, at low energies. The upward curvature in $λ^{-2}(T)$ near $T_c$ seen in overdoped films implies that superfluid comes from an anomalously small energy band within about $3k_BT_c$ of the Fermi surface. | |
| dc.description | 6 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0301174 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0301174 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20669 | |
| dc.subject | Superconductivity | |
| dc.title | Superconducting Density of States from the Magnetic Penetration Depth of Electron-Doped Cuprates La_{2-x}Ce_xCuO_{4-y} and Pr_{2-x}Ce_xCuO_{4-y} | |
| dc.type | text |