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- Title
Functional Nanostructures through Nanosecond Laser Dewetting of Thin Metal Films.
- Authors
Krishna, H.; Favazza, C.; Gangopadhyay, A. K.; Kalyanaraman, R.
- Abstract
Techniques for processing nanoscale metallic structures with spatial order and tunable physical characteristics, such as size and microstructure, are paramount to realizing applications in the areas of magnetism, optics, and sensing. This paper discusses how pulsed laser melting of ultrathin films can be a powerful but simple and cost-effective technique to fabricate functional nanostructures. Ultrathin metal films (1 nm to 1,000 nm) on inert substrates like SiO2 are generally unstable, with their free energy resembling that of a spinodal system. Such films can spontaneously evolve into predictable nanomorphologies with well-defined length scales. This study reviews this laser-based experimental technique and provides examples of resulting robust nanostructures that can have applications in magnetism and optics.
- Subjects
NANOSTRUCTURED materials; LASERS in engineering; METALLIC films; THIN films; MAGNETISM; OPTICS
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2008, Vol 60, Issue 9, p37
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-008-0115-y