Distinct charge and spin gaps in underdoped YBa2Cu3O7-x
| dc.creator | Mihailovic, D. | |
| dc.creator | Kabanov, V. V. | |
| dc.creator | Zagar, K. | |
| dc.creator | Demsar, J. | |
| dc.date | 1999-07-01 | |
| dc.date | 1999-07-13 | |
| dc.date.accessioned | 2026-07-07T10:19:15Z | |
| dc.date.available | 2026-07-07T10:19:15Z | |
| dc.description | A systamatic quantitative comparison of ''pseudogap'' values obtained from the analysis of charge and spin excitation spectroscopies in underdoped YBa2Cu3O7-x using a temperature-independent gap shows two distinct excitations, one visible in spin-flip spectroscopies like NMR and spin polarized neutron scattering, and the other in charge excitation spectoscopies like single particle tunneling and time-resolved quasiparticle relaxation. Both appear to decrease with doping x approximately as 1/x and are T-independent, existing above and below Tc. We suggest that the charge excitation can be attributed to a pair-breaking local gap, while the spin excitation can be explained by an intra-gap local triplet state. | |
| dc.description | 4 pages and 3 postscript figures, to be published in Phys. Rev.B (Rapid. Comm), Figure 1 is corrected | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9907005 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9907005 | |
| dc.identifier | Phys. Rev. B 60, R6995 (1999) | |
| dc.identifier | doi:10.1103/PhysRevB.60.R6995 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/174439 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Distinct charge and spin gaps in underdoped YBa2Cu3O7-x | |
| dc.type | text |