Time-modulated Chiral Solids
ORAL
Abstract
The shape of passive solids and liquids is typically determined by the time-independent interactions between thermally fluctuating constituents.
By contrast, in active and driven materials, the interactions can be modulated in time opening a new design axis.
Using an external field, we drive magnetic colloids to rotate with a rotational frequency that is modulated in time, generating non-trivial structure.
We show how the structures we observe are created as a result of time modulated bulk stresses and orientationally dependent surface forces.
By contrast, in active and driven materials, the interactions can be modulated in time opening a new design axis.
Using an external field, we drive magnetic colloids to rotate with a rotational frequency that is modulated in time, generating non-trivial structure.
We show how the structures we observe are created as a result of time modulated bulk stresses and orientationally dependent surface forces.
*University of Chicago Materials Research Science and Engineering Center, DMR-2011854.NSF DMR-1905974, NSF EFRI NewLAW 1741685 and the Packard Foundation.
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Presenters
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Yehuda A Ganan
- University of Chicago