Cracks in magnetic nanocrystal films: do directional and isotropic crack patterns follow the same scaling law?
basic_science · Level V
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- Record sourced from PubMed, PMID 18630886.
- Also identified by DOI 10.1021/nl801501y.
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Abstract
In this letter, we show that the use of nanocrystals enables new insights into the scaling law of crack patterns. Directional and isotropic crack patterns made of gamma-Fe2O3 nanocrystals follow the same scaling law, with the film height varying by 3 orders of magnitude. A simple two-dimensional computer model for elastic fracture also leads to the same scaling behavior for directional and isotropic cracks, in good agreement with the experiments.