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dc.contributor.authorKlyndyuk, A. I.-
dc.contributor.authorChizhova, E. A.-
dc.contributor.authorShevchenko, S. V.-
dc.date.accessioned2020-12-15T13:15:00Z-
dc.date.available2020-12-15T13:15:00Z-
dc.date.issued2020-
dc.identifier.citationKlyndyuk, A. I. Spin-state transition in the layered barium cobaltite derivatives and their thermoelectric properties / A. I. Klyndyuk, E. A. Chizhova, S. V. Shevchenko // Chimica Techno Acta. - 2020. - Vol. 7, no. 1. - P. 26–33ru
dc.identifier.urihttps://elib.belstu.by/handle/123456789/36986-
dc.descriptionBa[1.9]Me[0.1]Co[9]O[14] (Me = Ba, Sr, Ca) (BCO) layered cobaltites were prepared by means of solid-state reactions method. Crystal structure, microstructure, thermal expansion, electrical conductivity, and thermo-EMF for the obtained oxides were studied; the values of their linear thermal expansion coefficient, activation energy of electrical transport, and power factor values were calculated. It was found that BCO are p-type semiconductors, in which the spin-state transition occurs within 460–700 K temperature interval due to change in spin state of cobalt ions, which accompanied the sharp increase in electrical conductivity, activation energy of electrical conductivity, and linear thermal expansion coefficient, while thermo-EMF coefficient decreased. Partial substitution of barium by strontium or calcium in BCO leads to the increase in spin-state transition temperature and electrical conductivity of the samples, and, at the same time, thermo-EMF coefficient; consequently, their power factor values decrease.ru
dc.format.mimetypeapplication/pdfru
dc.language.isoenru
dc.subjectlayered barium cobaltiteru
dc.subjectspin-state transitionru
dc.subjectthermal expansionru
dc.subjectelectrical conductivityru
dc.subjectthermo-EMFru
dc.subjectpower factorru
dc.subjectслоистые кобальтитыru
dc.subjectкобальтит барияru
dc.subjectthermoelectric propertiesru
dc.subjectтермоэлектрические свойстваru
dc.subjectслоистый кобальтит бария-
dc.titleSpin-state transition in the layered barium cobaltite derivatives and their thermoelectric propertiesru
dc.typeArticleru
dc.identifier.udc546.43'73-
dc.identifier.DOIDOI: 10.15826/chimtech.2020.7.1.04-
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