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.
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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
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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
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Гнатченко С. Л.
Гнезділов В. П.
Золочевський І.В.
Кондрашов Д. С.
Курносов В. С.
Терехов А. В.
Хацько Є. М.
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2020-04-02
