Tucek Jirí, Zboril Radek, Petridis Dimitris
Department of Experimental Physics, Palacky University, Olomouc, Czech Republic.
J Nanosci Nanotechnol. 2006 Apr;6(4):926-47. doi: 10.1166/jnn.2006.183.
A 57Fe Mössbauer spectrometry applied in a broad range of temperatures and external magnetic fields is presented as a powerful investigating tool for the structural and magnetic characterization of maghemite (gamma-Fe2O3) nanoparticles, which presently constitute a modern advanced material used in various fields of scientific, technological, and biomedical interest. Reflections of structural and magnetic properties in the hyperfine parameters of Mössbauer spectra of nanomaghemite samples prepared by different routes with varying particle size distribution, particle morphology, and degree of interparticle interactions (isolated nanoparticles, powders, nanocomposites, films) are reviewed. Some crucial points concerning the description of the magnetic regime of strongly interacting maghemite nanoparticles are also briefly discussed with respect to their Mössbauer spectra.
本文介绍了一种在广泛温度和外部磁场范围内应用的57Fe穆斯堡尔光谱法，它是一种用于表征磁赤铁矿（γ-Fe2O3）纳米颗粒结构和磁性的强大研究工具，磁赤铁矿纳米颗粒目前是一种在科学、技术和生物医学等各个领域都有应用的现代先进材料。本文综述了通过不同途径制备的具有不同粒径分布、颗粒形态和颗粒间相互作用程度（孤立纳米颗粒、粉末、纳米复合材料、薄膜）的纳米磁赤铁矿样品的穆斯堡尔光谱超精细参数中结构和磁性的反映。还简要讨论了关于强相互作用磁赤铁矿纳米颗粒磁态描述的一些关键点及其穆斯堡尔光谱。
