Previous Events

To see the upcoming events and seminars, please check the Events page.

Event Name Date, Time and Host Summary
Hunting for topological phases amidst Hofstadter butterflies and disordered landscapes
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Giovanni Vignale
In this talk, I will discuss rich topological behavior in two related models – the Majorana wire and a Su-Schrieffer-Heeger ladder- in the presence of potential energy landscapes. An introduction of the two models and of techniques that directly provide information… Show more

Speaker: Smitha Vishveshwara, UIUC

Fundamentals of Amorphous Oxide Semiconductors
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Giovanni Vignale
Amorphous oxide semiconductors (AOS)—ternary or quaternary oxides of post-transition metals—have attracted a lot of attention due to high carrier mobility which is an order of magnitude larger than that of amorphous silicon (a-Si:H). Unlike Si-based semiconductors,… Show more

Speaker: Julia Medvedeva, University of Missouri S&T

Combined Magnetic Tweezers-TIRF microscopy for studying DNA-protein interactions
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Giovanni Vignale
Magnetic tweezers allow the user to apply force and torque to magnetic beads attached to single DNA molecules, and to observe the resulting changes in DNA extension. This technique, however, is limited to measuring a single degree of freedom: the distance between the… Show more

Speaker: Maria Mills, MU Physics

Manifestations of band geometry in linear and nonlinear transport
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I will describe how the geometry of the band structure of metals manifests itself in their optical and transport properties. I particular, I will show that the natural optical activity of metals, equivalent to the so-called dynamic chiral magnetic effect, stems from… Show more

Speaker: Dmytro Pesin, University of Virginia