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Information × Registration Number 0214U008994, 0114U000092 , R & D reports Title Elektric and magnetic properties of adaptive nanostructures based on transition metals and their oxides popup.stage_title Head Tovstolitkin O, Доктор фізико-математичних наук Registration Date 22-12-2014 Organization Institute of magnetism of NASU popup.description2 The work was focused on grounding the choice of materials for the magnetic component of composite structures, analysis of waysof controlling the parameters of magnetic subsystem and studies on bulk samplesof magnetics. A comprehensive study of the structural, magnetic and magnetoresistance properties of lanthanum-strontium manganite samples, for which additional substitutions in the manganese sublattice(Mn > Mn1-xMex, whereMe = Ti, Cr, Cu) was carried out, has been investigated. It is shown that the behavior of the samples at low doping levels (x 0,05) is significantly different from that characteristic ofhigh level of doping element.For the former samples, the low-temperature stateis homogeneous ferromagnetism, and their magnetic properties are weakly dependent on the content of doping elements.A characteristic feature of the region with higher values of x is the coexistence of two different magnetic phases and a strong decrease in saturation magnetization with increasing x.It is concluded that the introduction of doping ions in the manganese sublattice promotes conversion of ferromagnetic metallic phase into charge ordered one, with the fraction of the first phase being significantly reduced with increasing x. The data obtained are important for control of the properties of magnetic oxide by chemical substitutions. Product Description popup.authors Кравець А.Ф. Кузьмак О.М. Невдача В.В. ПолекТ.І. Полищук Д.М. Товстолиткін О.І. popup.nrat_date 2020-04-02 Close