Site-selective oxygen isotope effect on the magnetic field penetration depth in underdoped Y$_{0.6}$Pr$_{0.4}$Ba$_2$Cu$_3$O$_{7-δ}$

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dc.creatorKhasanov, R.
dc.creatorShengelaya, A.
dc.creatorMorenzoni, E.
dc.creatorAngst, M.
dc.creatorConder, K.
dc.creatorSavić, I. M.
dc.creatorLampakis, D.
dc.creatorLiarokapis, E.
dc.creatorTatsi, A.
dc.creatorKeller, H.
dc.date2003-08-21
dc.date.accessioned2026-07-07T12:05:03Z
dc.date.available2026-07-07T12:05:03Z
dc.descriptionWe report site-selective oxygen isotope ($^{16}$O/$^{18}$O) effect (OIE) measurements on the in-plane penetration depth $λ_{ab} $ in underdoped Y$_{0.6}$Pr$_{0.4}$Ba$_2$Cu$_3$O$_{7-δ}$, using the muon-spin rotation ($μ$SR) technique. A pronounced OIE on the transition temperature $T_c$ as well as on $λ_{ab}^{-2}(0)$ was observed, which mainly arises from the oxygen sites within the superconducting CuO$_2$ planes (100 % within error bar). The values of the corresponding relative isotope shifts were found to be $T_c/T_c= -3.7(4)%$ and $Δλ^{-2}_{ab}(0)/λ^{-2}_{ab}(0)= -6.2(1.0)%$. Our results imply that in this compound the phonon modes involving the movement of planar oxygen are dominantly coupled to the electrons.
dc.description4pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0308440
dc.identifierhttp://arxiv.org/abs/cond-mat/0308440
dc.identifierPhys. Rev. B, v. 68, 220506 (2003).
dc.identifierdoi:10.1103/PhysRevB.68.220506
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208280
dc.subjectSuperconductivity
dc.titleSite-selective oxygen isotope effect on the magnetic field penetration depth in underdoped Y$_{0.6}$Pr$_{0.4}$Ba$_2$Cu$_3$O$_{7-δ}$
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