Magnetic and transport properties of chemical solution deposited (100)-textured La0.7Sr0.3MnO3 and La0.7Ca0.3MnO3 nanocrystalline thin films

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dc.contributor.authorKartopu, Giray
dc.contributor.authorYalcin, Orhan
dc.contributor.authorDemiray, A. Serdar
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2011
dc.departmentNiğde ÖHÜ
dc.description.abstractA study of the magnetic and electrical properties of (100)-oriented La-0.7(Sr,Ca)(0.3)MnO3 thin films prepared by an optimized chemical solution deposition process on a (100) SrTiO3 single-crystal substrate is reported in this paper. The films were studied by high-resolution scanning electron microscopy, x-ray diffraction, vibrating sample magnetometer, ferromagnetic resonance and four-point-probe electrical measurements. A characteristic nanocrystalline texture with similar to 15 nm crystallites is observed in both films. Remarkably, the resistivities of these films are three orders of magnitude smaller compared with unoptimized films grown even on the same substrate. The magnetotransport properties were determined as a function of temperature and applied field magnitude, and compared with bulk crystals and vacuum-deposited single crystalline (epitaxial) thin films as well as manganite nanostructures reported in the literature. Both films display large values of colossal magnetoresistance at around room temperature. Significantly, the magnetoresistance in (100) La0.7Sr0.3MnO3 thin film is observed to be highly linear even at low fields near the metal-insulator transition temperature. However, the dependence of these promising properties on the nanocrystal size remains to be explored.
dc.identifier.doi10.1088/0031-8949/83/01/015701
dc.identifier.issn0031-8949
dc.identifier.issue1
dc.identifier.scopus2-s2.0-78751561365
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://dx.doi.org/10.1088/0031-8949/83/01/015701
dc.identifier.urihttps://hdl.handle.net/11480/4790
dc.identifier.volume83
dc.identifier.wosWOS:000286051600035
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherIOP PUBLISHING LTD
dc.relation.ispartofPHYSICA SCRIPTA
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleMagnetic and transport properties of chemical solution deposited (100)-textured La0.7Sr0.3MnO3 and La0.7Ca0.3MnO3 nanocrystalline thin films
dc.typeArticle

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