Funct. Mater. 2014; 21 (3): 302-306.
Magnetoresonance properties of manganite-perovskite nanocomposite with Bi2223-superconductor additives at T = 300 K, 4.2 K
[1] Institute of Radiophysics and Electronics, National Academy of Sciences of Ukraine, 12 Acad. Proskura St., 61085 Kharkiv, Ukraine
[2] Donetsk Physics & Technology Institute, National Academy of Sciences of Ukraine, 72 R.Luxemburg St., 83114 Donetsk, Ukraine
Results of research of electron magnetic resonance absorption in nanocomposites with different ratios of La0.6Sr0.4MnO3 manganite and superconductor Bi1.7Pb0.3Ca2Sr2Cu3O7-x (Bi2223) additives in the wide range of frequencies of 22-40 GHz, 68-80 GHz are presented at temperatures T = 340 K and 4.2 K. The manifestation of two peaks in the Electronic Magnetic Resonance spectrum is assigned to appearance of collinear ferromagnetic and paramagnetic phases in the structure under study.
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