화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔)
권호 12권 1호, p.949
발표분야 재료
제목 Microscopic properties of superparamagnetic ferrite nanoparticles
초록 The mangetic properites of five differently sized samples of the spinel ferrite nanoparticles have been investigated by XRD, TEM, magnetization measurements and Mossbauer spectroscopy. At the liquid helium temperature all the samples shows long-range antiferromagnetic order in coexistence with short-range mangetic order. The Mossbauer absorption lines broaden increasingly as the temperature approaches the Neel temperature from below. and a strong central perak appears in the specra. This kind of line broadening may be ascribed to the superparamagnetic effects.
저자 최은정, 조준희
소속 건양대
키워드 superparamagnetism; ferrite; nanoparticle
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