Electron-beam-induced surface quasimelting of Co granular nanowires

Huh, Seung H.; Nakajima, Atsushi
December 2004
Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6149
Academic Journal
Electron-beam-induced surface quasimelting of Co granular nanowires (GNWs) of 6–10 nm in diameter and ∼30 nm in length has been studied using a high-resolution electron microscope. From the time evolution of electron microscope images as a function of the irradiation time, it has been revealed that the morphological change in the Co GNW is quite different from that in a Co nanocluster (NC) in terms of structures and phase transitions. For example, the allotropic β→α transition, inhibited in the Co NC, can proceed in the Co GNW through the lattice softening of fcc (111) facets without dimensional collapse.


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