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您的检索式：作者名="Nicolas Troc"
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| 1 | Nano-fried-eggs: Structural, optical, and magnetic characterization of physically prepared iron-silver nanoparticles显示文摘The prospect of combining both magnetic and plasmonic properties in a singlenanoparficle promises both valuable insights on the properties of such systemsfrom a fundamental viewpoint and numerous possibilities for technologicalapplications. However, the combination of two of the most prominent metalliccandidates--iron and silver--has presented numerous experimental difficulties because their thermodynamic properties impede miscibility and even coalescence.Herein, we present the thorough characterization of physically prepared Fe50Ag50 nanoparticles embedded in carbon and silica matrices via electron microscopy,optical spectroscopy,magnetometry and synchrotron-based X-ray spectroscopy.Iron and silver segregate completely into structures resembling fried eggs, with anearly spherical, crystallized silver part surrounded by an amorphous structureof iron carbide or oxide, depending on the environment of the particles.Consequently, the particles exhibit both plasmonic absorption corresponding tothe silver nanospheres in an oxide environment and a reduced but measurablemagnetic response. The suitability of such nanoparticles for technologicalapplications is discussed from the viewpoint of their high chemical reactivity withtheir environment. | Julien Ramade Nicolas Troc Olivier Boisron Michel Pellarin Marie-Ange Lebault Emmanuel Cottancin Vitor T. A. Oiko Rafael Cabreira Gomes Varlei Rodrigues Matthias Hillenkamp | 2018 | Nano Research2018，11，11： | 0 |
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