Walk of a Line Defect in Quasicrystals |
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Authors: | Paolo Maria Mariano |
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Institution: | (1) D.I.C., Università di Firenze, via di Santa Marta 18, I-50136 Firenze, Italy |
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Abstract: | Quasicrystalline alloys are quasiperiodic aggregates in which local atomic changes (phason activity) influence prominently
the gross deformative behavior. The effects of these rearrangements on a line defect are analyzed here. Balances of standard
and phason interactions are derived along the line together with the balance of actions driving eventually it the former are
found to be covariant while the latter follows from a requirement of invariance with respect to the action of the group of
isochoric diffeomorphisms. The results can be applied to the analysis of dislocations in quasicrystals. |
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Keywords: | Quasicrystals Dislocations Multi-field theories Covariance |
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