Author: Yanzhi Guo

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AUTHOR

Yanzhi Guo

showing 1 related works from this author

Probing the Size Effect of Co2FeGa-SiO2@C Nanocomposite Particles Prepared by a Chemical Approach

2010

In this contribution, we report the chemical synthesis of carbon coated, silica supported Co2FeGa (Co2FeGa-SiO2@C) nanocomposite particles. The particle size of Co2FeGa particles can be tuned by varying the amount of silica supports. The dependences of the crystal structure and magnetic properties on particle size have been investigated by synchrotron radiation based X-ray diffraction (XRD), X-ray absorption fine structure (XAFS) spectroscopy, transmission electron microscope (TEM), 57Fe Mossbauer spectroscopy, and superconducting quantum interference device (SQUID). The superparamagnetic critical size of Co2FeGa Heusler nanoparticles is found to be ∼17 nm by correlating the TEM derived par…

Materials scienceNanocompositeGeneral Chemical EngineeringNanoparticleNanotechnologyGeneral ChemistryX-ray absorption fine structureChemical engineeringMössbauer spectroscopyParticle-size distributionMaterials ChemistryParticle sizeSpectroscopySuperparamagnetismChemistry of Materials

researchProduct

PEPhysical Sciences and Engineering
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LSLife Sciences
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SHSocial Sciences and Humanities
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