Critical behavior of YBa_{2}Cu_{3}O_{7-δ} and Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} from the dual Ginzburg-Landau model
| dc.creator | de Calan, Claude | |
| dc.creator | Nogueira, Flavio S. | |
| dc.date | 1999-09-24 | |
| dc.date | 1999-09-25 | |
| dc.date.accessioned | 2026-07-07T03:14:38Z | |
| dc.date.available | 2026-07-07T03:14:38Z | |
| dc.description | An unifying scenario for the critical behavior of YBa$_{2}$Cu$_{3}$O$_{7-δ}$ (YBCO) and Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+δ}$ (BSCCO) is proposed. It is shown that both critical crossovers observed in these materials follow by considering two different scalings in the dual Ginzburg-Landau model. The first scaling leads to the critical exponents $ν\approx 2/3$, $ν'\approx 1/3$ and $α\approx 0$, with $ν$ and $α$ being respectively the correlation lenght and specific heat exponents while $ν'$ is the magnetic field penetration depth exponent. These values for the critical exponents agree with the ones obtained experimentally for YBCO single crystals. For the second scaling we obtain $ν=1$ and $α=-1$ which must be compared with the measured values $ν\approx 1$ and $α\approx-0.7$ for BSCCO. For the penetration depth exponent it is predicted the value $ν'=1$. | |
| dc.description | RevTex, 3 pages, 1 figure; misprints corrected and numerical errors removed | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9909356 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9909356 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29747 | |
| dc.subject | Superconductivity | |
| dc.title | Critical behavior of YBa_{2}Cu_{3}O_{7-δ} and Bi_{2}Sr_{2}CaCu_{2}O_{8+δ} from the dual Ginzburg-Landau model | |
| dc.type | text |