| Autor: |
Ivan I. Nathin, T. Y. Privalova, Mark Belokobylskiy, Eugene N. Sidorenko, Artem Klochnev, Yuri Kabirov |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
2021 Radiation and Scattering of Electromagnetic Waves (RSEMW). |
| DOI: |
10.1109/rsemw52378.2021.9494058 |
| Popis: |
In this work the composites with carboxymethylcellulose (CMC) matrices containing ferromagnetic inclusions La0.7Sr0.3MnO3(LSMO) were synthesized. At room temperature, for composites with different concentrations of the ferromagnetic LSMO, absorption spectra of electromagnetic energy L (f) of various levels were obtained in the frequency range 3.2-11.5 GHz. Composites with concentrations of 10 and 15% manganite had the maximum energy absorption, reaching 15-20 dB in the high frequency range. The influence of a constant magnetic field (H≈300 kOe) on the amount of energy absorption L by composite materials is revealed. Temperature measurements in the region of the ferromagnet-paramagnetic phase transition zone 360 K revealed a maximum energy absorption reaching a level of 40 dB for a composite of 0.85LSMO / 0.15CMC composition. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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