| Autor: |
Nosov, Alexander P., Semkin, Mikhail A., Teplykh, A.E., Bogdanov, S.G., Urusova, Natali V., Skryabin, Yu.N., Pirogov, Alexander N., Vasiliev, Victor G., Vladimirova, Elena V., Karpova, Tatyana S. |
| Zdroj: |
Diffusion and Defect Data Part B: Solid State Phenomena; July 2015, Vol. 233 Issue: 1 p371-374, 4p |
| Abstrakt: |
Multiferroic composites of (x)NiFe2O4 + (1-x)BaTiO3 with x = 0.2, 0.3 and 0.4 and (x)CoFe2O4 + (1-x)BaTiO3 with x = 0.2, and 0.4 have been synthesized by mixing NiFe2O4 (CoFe2O4) spinel and BaTiO3 piezoelectric. Distribution of Ni (Co) ions on 8a and 16d positions of spinel lattice (space group F d-3m) is determined by neutron powder diffraction. Wave vector of magnetic structure of the spinel is k = 0. The dielectric permittivity of the composites was measured for the frequency range 102 – 105 Hz. At low frequencies the dielectric permittivity decreased from ~940 for x = 0.2 to ~360 for 0.4. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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