Observation of Kosterlitz-Thouless spin correlations in the colossally magnetoresistive layered manganite $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$

Simple item page
dc.creatorRosenkranz, S.
dc.creatorOsborn, R.
dc.creatorVasiliu-Doloc, L.
dc.creatorLynn, J. W.
dc.creatorSinha, S. K.
dc.creatorMitchell, J. F.
dc.date1999-09-03
dc.date.accessioned2026-07-07T03:14:27Z
dc.date.available2026-07-07T03:14:27Z
dc.descriptionThe spin correlations of the bilayer manganite $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$ have been studied using neutron scattering. On cooling within the paramagnetic state, we observe purely two-dimensional behavior with a crossover to three-dimensional scaling close to the ferromagnetic transition. Below $T_C$, an effective finite size behavior is observed. The quantitative agreement of these observations with the conventional quasi two-dimensional Kosterlitz-Thouless model indicates that the phase transition is driven by the growth of magnetic correlations, which are only weakly coupled to polarons above $T_C$.
dc.description4 pages (RevTex), 3 embedded EPS figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9909059
dc.identifierhttp://arxiv.org/abs/cond-mat/9909059
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29673
dc.subjectStrongly Correlated Electrons
dc.titleObservation of Kosterlitz-Thouless spin correlations in the colossally magnetoresistive layered manganite $La_{1.2}Sr_{1.8}Mn_{2}O_{7}$
dc.typetext

Files

Collections

arXiv