Ферромагнитный резонанс суперпарамагнитных композитов Fe2O3/SiO2
S. V. StolyarSiberian Federal University Krasnoyarsk , Russian FederationОксана А. ЛиSiberian Federal University Krasnoyarsk , Russian FederationН. М. БоевSiberian Federal University Krasnoyarsk , Russian FederationR. N. YaroslavtsevInstitute of PhysicsAnna V. TyumentsevaKrasnoyarsk Science Center , Federal Research Center KSC SB RAS Krasnoyarsk , Russian FederationAnna O. ShokhrinaInstitute of Chemistry and Chemical TechnologyAlexandre M. VorotynovInstitute of PhysicsР. С. ИсхаковSamarkand State University named after Sharof Rashidov Samarkand , UzbekistanIrina G. VazheninSiberian Federal University Krasnoyarsk , Russian FederationYurii L. RaikherСергей В. СтолярОксана А. ЛиРоман Н. ЯрославцевАнна В. ТюменцеваAnna O. ShokhrinaАлександр М. ВоротыновИ. Г. ВаженинаЮрий Л. Райхер
2026en
Ochiq kirishYashil
ABI
Annotatsiya
γ-Fe2O3/SiO2 powders with an average particle size of 10 nm were studied using ferro- magnetic resonance (FMR). The frequency and temperature dependences of the FMR parameters were analyzed within the framework of the anisotropic superparamagnet model. Saturation magnetization M = 300 G, magnetic anisotropy constant K ≈ 1.8·105 erg/cm3, and exchange surface anisotropy con- stant Ku ≈ 1.2·102 erg/cm2 were determined for the prepared powders
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