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| Abstract: | Transition metal acetylides, MC2 (M=Fe, Co and Ni), exhibit ferromagnetic behavior of which TC is characteristic of their size and structure. CoC2 synthesized in anhydrous condition exhibited cubic structure with disordered C2− 2 orientation. Once being exposed to water (or air), the particles behave ferromagnetically due to the lengthening of the Co–Co distance by the coordination of water molecules to Co2+ cations. Heating of these particles induces segregation of metallic cores with carbon mantles. Electron beam or 193 nm laser beam can produce nanoparticles with metallic cores covered with carbon mantles |
| Description: | Eur. Phys. J. D 34, 219–222 (2005) |
| URI: | http://dyuthi.cusat.ac.in/purl/4550 |
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| Formation of ca ... ctron beam irradiation.pdf | (272.6Kb) |
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