Magnetic properties of Co 3 O 4 polycrystal powder
Source abstract
Abstract
Abstract The results of investigations of magnetic properties of Co 3 O 4 polycrystals in powder morphology with average crystallite size of 10 µm are presented. The temperature dependence of the magnetic susceptibility, measured in a wide temperature interval (1.5≤T≤400 K) using SQUID magnetometer, as well as electron spin resonance (ESR) spectra measured at X-band and Q-band frequency ranges have been studied. Antiferromagnetism with a Neel temperature T N at about 39 K was observed from the analysis of evolution of molar magnetic susceptibility and ESR intensity as a function of temperature. ESR parameters namely g-factor, intensity (I ESR ), g-value, and linewidth ΔH for powder Co 3 O 4 have been obtained. Some deviations from the expected values of some magnetic properties were determined and discussed.
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Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Advanced Condensed Matter Physics · X-ray Diffraction in Crystallography
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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