Effect of carbon and post-annealing treatment on magnetic properties of high-quality iron thin films

Liu, Kewei; Shen, Dezhen; Zhang, Jiying; Wu, Xing‐De; Li, Binghui; Li, Bingsheng; Lu, Youming; Fan, X.W.

doi:10.1016/j.jcrysgro.2006.10.148

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…The coercivities of samples Fe and Fe-Si-Ru were 154 and 130 G, respectively. The decrease in coercivity in sample Fe-Si-Ru can be attributed to the changes in the surface of Fe 2 O 3 caused by SiO 2 [37]. The remnant magnetization (M r ) to saturation magnetization (M s ) ratios of samples Fe and Fe-Si-Ru were 0.258 and 0.346, respectively.…”

Section: Magnetic Propertiesmentioning

confidence: 92%

Synthesis and characterization of a new trifunctional magnetic–photoluminescent–oxygen-sensing nanomaterial

Liu

Ying

et al. 2008

Nanotechnology

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Magnetic Fe(2)O(3) nanoparticles coated with SiO(2) chemically doped with a Ru(II) complex were prepared using a simple solution based method. Field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) showed that the Fe(2)O(3) nanoparticles with a mean diameter of ∼115 nm were successfully coated with Ru(II) complex-chemically doped SiO(2) shell with a thickness of ∼30 nm. The obtained nanocomposite material showed a strong magnetic response to a varying magnetic field, exhibited the bright red triplet metal-to-ligand charge transfer ((3)MLCT) emission, and its photoluminescent intensity was sensitive to oxygen concentration. Compared with the Ru(II) complex in silica gels, the Ru(II) complex in the magnetic-optical-oxygen-sensing nanocomposite demonstrated improved thermodynamic stability of emissions. These nanocomposites are also nontoxic and easily conjugated with biomolecules. Their magnetic, photoluminescent and oxygen-sensing properties make them promising candidates for cell separation, biomarkers and optical oxygen sensors, which can measure the O(2) concentration in biological bodies.

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Section: Magnetic Propertiesmentioning

confidence: 92%