Thermal Conductivity as a Probe of Quasi-Particles in the Cuprates
| dc.creator | Ong, N. P. | |
| dc.creator | Krishana, K. | |
| dc.creator | Zhang, Y. | |
| dc.creator | Xu, Z. A. | |
| dc.date | 1999-04-12 | |
| dc.date.accessioned | 2026-07-07T03:13:14Z | |
| dc.date.available | 2026-07-07T03:13:14Z | |
| dc.description | In underdoped YBa_2Cu_3O_x (x=6.63), the low-T thermal conductivity Kappa_xx varies steeply with field B at small B, and saturates to a nearly field-independent value at high fields. The simple expression [1+p(T)|B|]^(-1) provides an excellent fit to Kappa_xx(B) over a wide range of fields. From the fit, we extract the zero-field mean-free-path, and the low temperature behavior of the QP current. The procedure also allows the QP Hall angle Theta_QP to be obtained. We find that Theta_QP falls on the 1/T^2 curve extrapolated from the electrical Hall angle above Tc. Moreover, it shares the same T dependence as the field scale p(T) extracted from Kappa_xx. We discuss implications of these results. | |
| dc.description | 5 pages in Tex, 4 figures in EPS | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9904160 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9904160 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29218 | |
| dc.subject | Superconductivity | |
| dc.title | Thermal Conductivity as a Probe of Quasi-Particles in the Cuprates | |
| dc.type | text |