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EnglishWe show that Pb nanowires may grow by co-sputtering of Al-Pb target. During sputter deposition, stress is generated inside the deposited film. Because Pb is immiscible in Al, stress relaxation occurs through Pb segregation along the aluminum grain boundary. Extrusion of Pb is inhibited if a few layers of Al oxide are formed on the surface of the film. However, if the surface oxide is broken by external perturbations, for example air-operated corrosion or electron beam, then segregated Pb extrudes in form of nanowires.
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| Titolo: | Growth of Pb-nanowires in one single process by co-sputtering of Al-Pb targets |
| Autori Unitn: | |
| Anno di pubblicazione: | 2012 |
| Titolo del periodico: | |
| Abstract: | We show that Pb nanowires may grow by co-sputtering of Al-Pb target. During sputter deposition, stress is generated inside the deposited film. Because Pb is immiscible in Al, stress relaxation occurs through Pb segregation along the aluminum grain boundary. Extrusion of Pb is inhibited if a few layers of Al oxide are formed on the surface of the film. However, if the surface oxide is broken by external perturbations, for example air-operated corrosion or electron beam, then segregated Pb extrudes in form of nanowires. |
| Handle: | http://hdl.handle.net/11572/91692 |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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http://hdl.handle.net/11572/91692
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