Size analysis of single-core magnetic nanoparticles

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• 作者：Frank Ludwig^a ; ^{f.ludwig@tu-bs.de} ; Christoph Balceris^a ; Thilo Viereck^a ; Oliver Posth^b ; Uwe Steinhoff^b ; Helena Gavilan^c ; Rocio Costo^c ; Lunjie Zeng^d ; Eva Olsson^d ; Christian Jonasson^e ; Christer Johansson^e
• 关键词：Single-core nanoparticles ; Size distribution ; Transmission electron microscopy ; Dynamic light scattering ; Magnetization ; Brownian and N&eacute ; el relaxation
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：427
• 期：Complete
• 页码：19-24
• 全文大小：729 K
• 卷排序：427

文摘

Investigation of size parameters of single-core magnetic nanoparticles with nominal core diameters of 14 nm and 19 nm utilizing different magnetic and non-magnetic methods Hydrodynamic size determined from ac susceptibility measurements is consistent with the DLS findings Core size agrees determined from static magnetization curves, MRX and ACS data agrees with results from TEM although the estimation is based on different models (Langevin function, Brownian and Néel relaxation times).