Two types of Hc2(T) dependences in Bi_2Sr_2Ca_(1-x)Y_xCu_2O_(8+delta) with different Yttrium content
| dc.creator | Landau, I. L. | |
| dc.creator | Keller, H. | |
| dc.date | 2006-12-01 | |
| dc.date.accessioned | 2026-07-07T08:12:31Z | |
| dc.date.available | 2026-07-07T08:12:31Z | |
| dc.description | We reanalyze the magnetization data collected on Bi_2Sr_2Ca_(1-x)Y_xCu_2O_(8+y) samples (Kim at al, Phys. Rev. B 72, 64525 (2005)) and argue that the method, which was used for the analysis of equilibrium magnetization data, is not adequate to the experimental situation. As a result, the temperature dependencies of the upper critical field Hc2(T) and the magnetic field penetration depth lambda (T), obtained in this work, are misinterpreted. Using a different approach to analysis, we demonstrate that the normalizedHc2(T) curves are rather different from those presented in the original publication and do not follow predictions of the Werthamer-Helfand-Hohenberg theory. Another important observation is that the Hc2(T) dependencies for two samples with different levels of doping are qualitatively different. | |
| dc.description | 10 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612031 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612031 | |
| dc.identifier | Physica C, v. 458, Issues 1-2, 1 July 2007, Pages 38-42 | |
| dc.identifier | doi:10.1016/j.physc.2007.03.374 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/132478 | |
| dc.subject | Superconductivity | |
| dc.title | Two types of Hc2(T) dependences in Bi_2Sr_2Ca_(1-x)Y_xCu_2O_(8+delta) with different Yttrium content | |
| dc.type | text |