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dc.creatorJovanović, Vladimir P.
dc.creatorFruchter, L.
dc.creatorLi, Z. Z.
dc.creatorRaffy, H.
dc.date.accessioned2022-04-05T14:23:54Z
dc.date.available2022-04-05T14:23:54Z
dc.date.issued2010
dc.identifier.issn1098-0121
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/380
dc.description.abstractSignatures of antiferromagnetism (AF) in the underdoped Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family are observed even for doping levels for which superconductivity exists. We have looked for a similar property in a different electron-doped cuprate family, Sr1-xLaxCuO2, which consists of CuO2 planes separated by Sr/La atoms, and is exempt of the possible influence of magnetic rare-earth ions. We report in-plane magneto-resistance measurements in the normal state of underdoped, superconducting, c- axis oriented, epitaxial Sr1-xLaxCuO2 thin films. This probe is sensitive to spin arrangement and we find that the in-plane magnetoresistance, which is negative and does not saturate for H lt = 6 T, exhibits an angular dependence when measured upon rotating a magnetic field within the CuO2 planes. The analysis reveals a superposition of fourfold and twofold angular oscillations. Both of these increase in amplitude with increasing field and decreasing T and appear below a temperature T-onset, which gets higher with decreasing doping levels. Our results demonstrate that these magnetoresistance oscillations, also observed for the Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family and attributed to an AF signature, are, without ambiguity, a property of CuO2 planes. Besides, these oscillations vary with doping in an unusual way compared to previous results: fourfold oscillations are essentially present in the more underdoped samples while only twofold oscillations are visible in the less underdoped ones. This intriguing observation appears to be a consequence of spin dilution with increasing doping level.en
dc.publisherAmer Physical Soc, College Pk
dc.relationE. C. under an ESRT Marie Curie Program [MEST-CT-2004-514307]
dc.rightsrestrictedAccess
dc.sourcePhysical Review B
dc.subjectsuperconductors
dc.subjectelectron-doped cuprate
dc.subjectepitaxial thin films
dc.subjectmagnetotransport
dc.subjecthigh magnetic fields
dc.titleAnisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin filmsen
dc.typearticle
dc.rights.licenseARR
dc.citation.issue13
dc.citation.other81(13): -
dc.citation.rankM21
dc.citation.volume81
dc.identifier.doi10.1103/PhysRevB.81.134520
dc.identifier.scopus2-s2.0-77955189539
dc.identifier.wos000277207900095
dc.type.versionpublishedVersion


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Приказ основних података о документу