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Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films
dc.creator | Jovanović, Vladimir P. | |
dc.creator | Fruchter, L. | |
dc.creator | Li, Z. Z. | |
dc.creator | Raffy, H. | |
dc.date.accessioned | 2022-04-05T14:23:54Z | |
dc.date.available | 2022-04-05T14:23:54Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1098-0121 | |
dc.identifier.uri | http://rimsi.imsi.bg.ac.rs/handle/123456789/380 | |
dc.description.abstract | Signatures 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.publisher | Amer Physical Soc, College Pk | |
dc.relation | E. C. under an ESRT Marie Curie Program [MEST-CT-2004-514307] | |
dc.rights | restrictedAccess | |
dc.source | Physical Review B | |
dc.subject | superconductors | |
dc.subject | electron-doped cuprate | |
dc.subject | epitaxial thin films | |
dc.subject | magnetotransport | |
dc.subject | high magnetic fields | |
dc.title | Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.issue | 13 | |
dc.citation.other | 81(13): - | |
dc.citation.rank | M21 | |
dc.citation.volume | 81 | |
dc.identifier.doi | 10.1103/PhysRevB.81.134520 | |
dc.identifier.scopus | 2-s2.0-77955189539 | |
dc.identifier.wos | 000277207900095 | |
dc.type.version | publishedVersion |