Core Size Effect on the Vortex Quasiparticle Excitations in Overdoped $La_{2-x}Sr_xCuO_4$ Single Crystals
| dc.creator | Liu, Z. Y. | |
| dc.creator | Wen, H. H. | |
| dc.creator | Xiang, T. | |
| dc.creator | Komiya, Seiki | |
| dc.creator | Sun, X. F. | |
| dc.creator | Ando, Yoichi | |
| dc.date | 2003-01-21 | |
| dc.date.accessioned | 2026-07-07T02:49:15Z | |
| dc.date.available | 2026-07-07T02:49:15Z | |
| dc.description | Low temperature specific heat has been measured for an overdoped $La_{2-x}Sr_xCuO_4$ (x = 0.22) single crystal. The quasiparticle density of states (DOS) in the mixed state is found to deviate from the predicted scaling law $C_{vol}=Hf(T/H^{1/2})$. However, this scaling behavior is nicely reconciled if one considers the normal core region ($ξ\approx$ 21$Å$) which gives small contribution to the total DOS. The radius of the core and other parameters derived are consistent with reported values. Our results suggest that there is no zero-bias conductance peak (ZBCP), which is predicted by the simple Bogoliubov de-Gennes theory in the vortex core of a d-wave superconductor. | |
| dc.description | 4 Pages, 4 Figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0301366 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0301366 | |
| dc.identifier | The content is included in the paper Phys. Rev. B70, 214505(2004) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20723 | |
| dc.subject | Superconductivity | |
| dc.title | Core Size Effect on the Vortex Quasiparticle Excitations in Overdoped $La_{2-x}Sr_xCuO_4$ Single Crystals | |
| dc.type | text |