Nanoscale Structure, Dynamics, and Aging Behavior of Metallic Glass Thin Films

Scanning tunnelling microscopy observations resolve the structure and dynamics of metallic glass Cu(100−x)Hf(x) films and demonstrate scanning tunnelling microscopy control of aging at a metallic glass surface. Surface clusters exhibit heterogeneous hopping dynamics. Low Hf concentration films featu...

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Detalles Bibliográficos
Autores principales: Burgess, J. A. J., Holt, C. M. B., Luber, E. J., Fortin, D. C., Popowich, G., Zahiri, B., Concepcion, P., Mitlin, D., Freeman, M. R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4976322/
https://www.ncbi.nlm.nih.gov/pubmed/27498698
http://dx.doi.org/10.1038/srep30973
Descripción
Sumario:Scanning tunnelling microscopy observations resolve the structure and dynamics of metallic glass Cu(100−x)Hf(x) films and demonstrate scanning tunnelling microscopy control of aging at a metallic glass surface. Surface clusters exhibit heterogeneous hopping dynamics. Low Hf concentration films feature an aged surface of larger, slower clusters. Argon ion-sputtering destroys the aged configuration, yielding a surface in constant fluctuation. Scanning tunnelling microscopy can locally restore the relaxed state, allowing for nanoscale lithographic definition of aged sections.

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