Emergence of Cooper pairs, d-wave duality and the phase diagram of cuprate superconductors
| dc.creator | Tesanovic, Zlatko | |
| dc.date | 2007-05-28 | |
| dc.date.accessioned | 2026-07-07T09:51:36Z | |
| dc.date.available | 2026-07-07T09:51:36Z | |
| dc.description | BCS theory describes the formation of Cooper pairs and their instant "Bose condensation" into a superconducting state. Helium atoms are preformed bosons and, in addition to their condensed superfluid state, can also form a quantum solid, lacking phase-coherence. Here we show that the fate of Cooper pairs can be more varied than the BCS or helium paradigms. In copper-oxide d-wave superconductors (dSC) Cooper pairs are intrinsically non-local objects, with both center-of-mass and relative motions. As doping decreases, the center-of mass fluctuations force a correlated dSC into a state with enhanced diamagnetism and robust but short-ranged superconducting order. At extreme underdoping, the relative fluctuations take over and two pseudogaps -- ``small'' (charge) and ``large'' (spin) -- emerge naturally from the theory, as Cooper pairs ``disintegrate'' and charge ``detaches'' from spin-singlet bonds. The ensuing ground state(s) are governed by diagonal (mostly antiferromagnetic) rather than by superconducting (off-diagonal) correlations. The theory is used to account for several recent experiments and to draw general conclusions about the phase diagram. | |
| dc.description | 6 pages + 2 figures | |
| dc.identifier | https://arxiv.org/abs/0705.3836 | |
| dc.identifier | http://arxiv.org/abs/0705.3836 | |
| dc.identifier | Nature Physics 4, 408 - 414 (2008) | |
| dc.identifier | doi:10.1038/nphys910 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/165304 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Emergence of Cooper pairs, d-wave duality and the phase diagram of cuprate superconductors | |
| dc.type | text |