University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Wednesday, January 18th 2017
1:25 pm:
Speaker: Aliaksei Charnukha, University of California, San Diego
Subject: Charge dynamics in iron-based superconductors
Candidate for the Condensed Matter Experimental Assistant Professor Position

More than a century after the discovery of dissipationless charge transport in mercury below 4.2K, the search for room-temperature superconductivity continues. Record-high transition temperatures above 200K have been achieved but only under the extreme conditions of ultra-high pressure or, possibly, intense transient light fields. The leading candidate for realizing ambient superconductivity have remained strong electronic correlations, an established ingredient in unconventional high-temperature copper-based superconductivity. Iron-based compounds have emerged as entirely distinct species, in which superconductivity can be refined to a single atomic layer and enhanced to occur at 65K by interfacial interactions. Here, we will consider the influence of many-body effects on the low-energy charge transport and band structure in iron-based superconductors and parent compounds in order to shed light onto the microscopic mechanism of superconducting pairing in this novel class of materials.

Faculty Host: James Kakalios

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