Cornell University

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LASSP & AEP Seminar - Danilo Liarte - Cornell University - LASSP - Virtual Meeting

Tuesday, March 24, 2020 at 12:20pm

Zoom Meeting

Hosted by James P. Sethna

Geometry, disorder and topology in soft matter: Smectics, Jamming, and Mechanical Metamaterials

Geometry, disorder and topology have a central role in condensed matter. Their interplay and synergy lead to some of the most intriguing phenomena in soft-matter physics. I will show how to use the mathematics of martensites (iron, shape-memory alloys) to study focal conic domains — the most iconic defect of smectic liquid crystals displaying Lorentz invariance and neat arrangements of ellipses and hyperbolas. I will also describe crystalline lattices whose disordered topology is crafted to model the elastic properties of jamming (a ubiquitous transition describing many systems from molecular glasses and granular media to dislocation tangles and biological tissues). Finally, I will design multifunctional metamaterials whose Poisson ratios can be suitably tuned throughout their physical range via random dilution.

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Event Type

Seminar

Departments

LASSP, Applied and Engineering Physics

Contact E-Mail

lmr268@cornell.edu

Contact Name

Lea Reagan

Contact Phone

6072559684

Speaker

Danilo Liarte

Speaker Affiliation

Cornell University LASSP

Dept. Web Site

http://sethna.lassp.cornell.edu/people/danilo_liarte

Open To

Public

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