Fluctuations in $YBa_{2}Cu_{3}O_{6.5}$ single crystal: an evidence for 2D->3D crossover

Simple item page
dc.creatorRosenstein, B.
dc.creatorShapiro, B. Ya.
dc.creatorProzorov, R.
dc.creatorShaulov, A.
dc.creatorYeshurun, Y.
dc.date2000-12-09
dc.date.accessioned2026-07-07T02:39:42Z
dc.date.available2026-07-07T02:39:42Z
dc.descriptionMagnetization measurements as a function of temperature are reported for $YBa_{2}Cu_{3}O_{6.5}$ crystal (T_{c}=45.2 K) for fields between 0.2 to $3.5\ Tesla$. All isochamps for H>1 Tesla intersect at $T_{2D}^{\star}\simeq 42.8\ K$, implying fluctuations contribution to the magnetization. These curves collapse into a single curve when magnetization and temperature are scaled according to the predicted ''2D scaling'' in the fluctuation regime. Surprisingly, the low field curves also intersect, at $T_{3D}^{\star}\simeq 43.4 K$, and they obey a 3D scaling. We provide a theoretical picture of the magnetization in the fluctuation regime based on the Lawrence-Doniach model. Within this model we calculate the field and temperature dependence of the magnetization. The two intersection points and the $2D\to 3D$ crossover are consistent with the experimental observation.
dc.descriptionRevTeX, 9 pages, 5 eps figures. Accepted in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0012151
dc.identifierhttp://arxiv.org/abs/cond-mat/0012151
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17119
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFluctuations in $YBa_{2}Cu_{3}O_{6.5}$ single crystal: an evidence for 2D->3D crossover
dc.typetext

Files

Collections

arXiv