Physics Colloquium Series (02.06) | Nadya Mason

Thursday, February 06, 2020 at 4:00pm to 5:00pm

Huntington Hall (10-250), 10-250

The David and Edith Harris Physics Colloquium Series

Speaker: Nadya Mason | University of Illinois, Urbana-Champaign

"Controlling Dissipation in Superconductors: the Oxymoron that Leads to New Superconducting Phases and Transitions "

 

Superconductors are exciting materials for basic physics and applications because they conventionally exhibit zero-resistance and zero-dissipation (i.e., no energy loss). In contrast, unconventional superconductors—including high-temperature superconductors and hybrid superconductor-normal (S-N) systems relevant to quantum computation—combine superconductivity with dissipative normal metal-like states. Yet dissipation has been difficult to control and parametrize. In this talk, I will discuss electrical transport experiments on hybrid superconductor-normal metal systems where the dissipation is controlled, leading to new understanding of superconducting states and transitions. In particular, I will show how superconductivity is established in granular S-N systems, how metallic states appear in arrays of S-N systems as the normal metal fraction is increased, and how magnetic fields can be used to control a variety of dissipative phase transitions. The results are relevant to understanding the role of dissipation in superconducting systems, and in correlated materials in general.


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The lecture will take place in 10-250, starting at 4pm.
Pre-Colloquium Social in room 4-349 will begin at 3:30pm, refreshments will be served.


For questions, contact Ryan Higgins at higginsr@mit.edu

See future Physics Colloquium lectures at: https://web.mit.edu/physics/events/colloquia.html

Event Type

Conferences/Seminars/Lectures

Events By Interest

Academic

Events By Audience

Public, Students, Alumni, Faculty

Events By School

School of Science

Tags

physics

Website

https://web.mit.edu/physics/events/co...

Department
Department of Physics
Hashtag

#PhysicsColloquium

Contact Email

higginsr@mit.edu

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