Physics – Condensed Matter – Superconductivity
Scientific paper
1999-09-24
Physics
Condensed Matter
Superconductivity
RevTex, 3 pages, 1 figure; misprints corrected and numerical errors removed
Scientific paper
An unifying scenario for the critical behavior of YBa$_{2}$Cu$_{3}$O$_{7-\delta}$ (YBCO) and Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ (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 $\nu\approx 2/3$, $\nu'\approx 1/3$ and $\alpha\approx 0$, with $\nu$ and $\alpha$ being respectively the correlation lenght and specific heat exponents while $\nu'$ 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 $\nu=1$ and $\alpha=-1$ which must be compared with the measured values $\nu\approx 1$ and $\alpha\approx-0.7$ for BSCCO. For the penetration depth exponent it is predicted the value $\nu'=1$.
Calan Claude de
Nogueira Flavio S.
No associations
LandOfFree
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 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 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 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-565895