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Information × Registration Number 0209U008710, 0107U009026 , R & D reports Title Electrophysics, magnetic, thermodynamic and microwave properties, point-contact, IR and Raman spectra of nanostructure materials La-Mn-O, Cu-Ca-Mn-O,gamma- Fe-O, polycrystal composite materials based on diamond with metallic conductivity and elements of nanocrystal structure. popup.stage_title Head Zolochevskii Ivan Vasil'ovich, Registration Date 09-12-2009 Organization B.Verkin Institute for Low Temperature Physics and Engineering of National Academy of Science of Ukraine popup.description2 It is found that ferromagnetic and antiferromagnetic phases can coexist at the microlevel in nanocomposite manganites La-Mn-O with the p-type conductivity, but they remain ferromagnetics at the macrolevel. It is also found that diamond nanocomposites are semiconductors. At T=5 K the samples of these polycrystalline nanocomposites exhibit the effect of a negative-to-positive change of the sign of magnetoresistance which is dependent on the technology of sample preparation . Three so far unknown magnetic transitions have been detected in the nanocomposite compound GdNiO3 at T= 13K, 1.6K and 0.7K. Product Description popup.authors Гнатченко С. Л. Гнезділов В. П. Золочевський І.В. Кондрашов Д. С. Курносов В. С. Терехов А. В. Хацько Є. М. popup.nrat_date 2020-04-02 Close