A route to high temperature superconductivity in composite systems
| dc.creator | Berg, E. | |
| dc.creator | Orgad, D. | |
| dc.creator | Kivelson, S. A. | |
| dc.date | 2008-05-24 | |
| dc.date | 2008-09-17 | |
| dc.date.accessioned | 2026-07-07T10:03:09Z | |
| dc.date.available | 2026-07-07T10:03:09Z | |
| dc.description | Apparently, some form of local superconducting pairing persists to temperatures well above the maximum observed $T_c$ in underdoped cuprates, \textit{i.e.} $T_c$ is suppressed due to the small phase stiffness. With this in mind, we consider the following question -- Given a system with a high pairing scale $Δ_0 $ but with $T_c$ reduced by phase fluctuations, can one design a composite system in which $T_c$ approaches its mean-field value, $T_c\to T_{MF}\approx Δ_0/2\$? Here, we study a simple two component model in which a "metallic layer" with $Δ_0=0$ is coupled by single-particle tunneling to a "pairing layer" with $Δ_0 >0 $ but zero phase stiffness. We show that in the limit that the bandwidth of the metal is much larger than $Δ_0$, $T_c$ of the composite system can reach the upper limit $T_c \approxΔ_0/2$. | |
| dc.description | Journal Ref. added. See also http://physics.aps.org/articles/v1/19 | |
| dc.identifier | https://arxiv.org/abs/0805.3737 | |
| dc.identifier | http://arxiv.org/abs/0805.3737 | |
| dc.identifier | Phys. Rev. B 78, 094509 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.78.094509 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/169181 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | A route to high temperature superconductivity in composite systems | |
| dc.type | text |