ESR of ultrafine magnetic particles
作者： Kazukiyo Nagata , Akihiro Ishihara
DOI: 10.1016/0304-8853(92)91459-7
关键词: Condensed matter physics 、 Spectral line 、 Ferrite (magnet) 、 Magnetic nanoparticles 、 Zero field 、 Electron magnetic resonance 、 Ferrimagnetism 、 Materials science
摘要: Abstract Ultrafine ferrimagnetic particles (MnZn ferrite) dispersed in solid kerosene have been investigated by electron magnetic resonance. Below about 220 K where the are embedded frozen kerosene, observed spectra show a broad line with Gaussian lineshape, which broadens and shifts towards lower fields as temperature is lowered. The of resonance proportional to second- third-powers linewidths for samples finite applied field zero field, respectively. A phenomenological theory lineshift will be described.
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