A Possible Correlation Between Suppression Of Superconductivity, Magnetic Ordering And Normal State Resistivity Parameters In The Yb1-χprχba2cu3 O7-δ System

dc.creatorGupta A.
dc.creatorNarayan H.
dc.creatorLisboa-Filho P.N.
dc.creatorCardoso C.A.
dc.creatorAraujo Moreira F.M.
dc.creatorDe Lima O.F.
dc.creatorNarlikar A.V.
dc.date2002
dc.date2015-06-30T16:40:51Z
dc.date2015-11-26T15:31:50Z
dc.date2015-06-30T16:40:51Z
dc.date2015-11-26T15:31:50Z
dc.date.accessioned2018-03-28T22:40:18Z
dc.date.available2018-03-28T22:40:18Z
dc.identifier
dc.identifierModern Physics Letters B. , v. 16, n. 8, p. 261 - 273, 2002.
dc.identifier2179849
dc.identifier10.1142/S0217984902003725
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0037052122&partnerID=40&md5=8c71bf51a8840d06cc611147a51bc8af
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/101523
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/101523
dc.identifier2-s2.0-0037052122
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1262330
dc.descriptionPolycrystalline samples of the Pr doped Yb1-PrχBa2Cu3 O7-δ (i.e. Yb(Pr)-123) system for 0 ≤ χ ≤ 1 have been investigated for resistivity ρ and magnetization M as a function of temperature in normal and superconducting states. The gradual decrease in superconducting critical temperature Tc(χ) is found to be correlated with the χ-dependent ratio of resistivity slope (dρ/dT)cc (corresponding to the linear ρ(T) region) and residual resistivity ρ0. In particular, the observed difference of critical Pr concentration where superconductivity is destroyed (χc) in Yb(Pr)-123 (χc ≈ 0.65) and Y(Pr)-123 (χc ≈ 0.55) matches with the difference in the value of Pr concentration where the ratio (dρ/dT)cc/ρ0 tends to go to zero in them. The M(T) data of the Yb(Pr)-123 samples show magnetic ordering for χ > χc at characteristic temperatures, Tn, that increase with χ. Interestingly, the Yb(Pr)-123 sample with Pr content (χ = 0.6) near χc reveals several anomalous features like transition from metallic to semiconducting-like ρ(T), an excessive broadening of the diamagnetic transition and weakening of the M(T) signal related to antiferromagnetic ordering of Pr ions. These observations can be consistently interpreted by assuming the presence of dynamically fluctuating striped phase in these systems.
dc.description16
dc.description8
dc.description261
dc.description273
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dc.languageen
dc.publisher
dc.relationModern Physics Letters B
dc.rightsfechado
dc.sourceScopus
dc.titleA Possible Correlation Between Suppression Of Superconductivity, Magnetic Ordering And Normal State Resistivity Parameters In The Yb1-χprχba2cu3 O7-δ System
dc.typeArtículos de revistas


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