Comparative scanning tunneling microscopy studies of CoFe_2O_4 nanoparticles of ferrofluids in acidic medium

机译：酸性介质中铁磁流体CoFe_2O_4纳米粒子的比较扫描隧道显微镜研究

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Within those ferrofluids dispersed in acidic water CoFe_2O_4, nanoparticles possess a regular spherical shape measuring approximately 2-6 nm in diameter. Within this colloid, aggregates (clusters of particles) have been observed that can be sorted into either strongly aggregating or weakly aggregating, according to scanning tunneling microscopy (STM) images. The ratio of the two kinds of aggregates is very different depending upon whether the sample is wet or dry. We propose that aggregation or clustering morphology is determined by both internal and external interactions.

机译：在分散于酸性水CoFe_2O_4中的那些铁磁流体中，纳米粒子具有直径约为2-6 nm的规则球形。在这种胶体中，根据扫描隧道显微镜（STM）图像，可以观察到聚集体（颗粒簇）可以分为强聚集体或弱聚集体。根据样品是湿的还是干的，两种聚集体的比例差异很大。我们建议聚集或聚类的形态是由内部和外部的相互作用决定的。

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《third annual Atomic Force Microscopy/Scanning Tunneling Microscopy Symposium at the Omni Inner Harbor Hotel in Baltimore, Maryland, from May 9 to 12, 1998.》|1998年|p.175-179|共5页
会议地点 Baltimore MD(US);Baltimore MD(US)
作者
Dalin Dai; Jian Li; Linhai Xiang; Yi Wen; Wenshong Zhang; Guo Li; Samuel H. Cohen;
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中图分类机械、仪表工业;
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Comparative scanning tunneling microscopy studies of CoFe_2O_4 nanoparticles of ferrofluids in acidic medium

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