Superfluid weight vs. superconducting temperature based on a U(1) slave-boson approach to the t-J Hamiltonian
| dc.creator | Lee, Sung-Sik | |
| dc.creator | Salk, Sung-Ho Suck | |
| dc.date | 2000-05-06 | |
| dc.date.accessioned | 2026-07-07T02:37:34Z | |
| dc.date.available | 2026-07-07T02:37:34Z | |
| dc.description | Based on an improved U(1) slave-boson approach to the t-J Hamiltonian, we invest igate a relationship between the superfluid weight $n_s/m^*$(the superconducting charge carrier density/the effective mass of the charge carrier) and the superc onducting temperature $T_c$. From the present study we find a linear increase of $n_s/m^*$ with $T_c$ with th e doping concentration in the underdoped region, a saturation around the optimal doping and a decrease in both $n_s/m^*$ and $T_c$ in the overdoped region. Such a trend of the `boomerang' shaped locus in $n_s/m^*$ vs. $T_c$ with increas ing doping concentration from the underdoped to the heavily overdoped region is predicted to be in complete agreement with muon-spin-relaxation measurements. The boomerang behavior is found to occur in correlation with reduction in the sp in singlet pairing(spinon pairing) order in the heavily overdoped region. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0005120 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0005120 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16337 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Superfluid weight vs. superconducting temperature based on a U(1) slave-boson approach to the t-J Hamiltonian | |
| dc.type | text |