Colloquium: Impurity states in superconductors and Dirac Materials

Date

Apr 8, 2019

Time

4:30 PM - 5:30 PM

Speaker

Prof. Alexander Balatsky

Affiliation

NORDITA, Stockholm, Schweden

Series

MPI-PKS Kolloquium

Language

en

Main Topic

Physik

Other Topics

Physik

Description

Impurity engineered states are the key component of modern electronics. We expect impurity engineered states will continue to be an important ingredient in quantum technologies beyond Si. New platforms that take advantage of impurity engineered bands such as superconductors and Dirac Materials are emerging. In this talk I will review the status and future perspectives of the field of impurity bound states in superconductors and will discuss striking similarities and important differences between defect states in superconductors and Dirac materials. I will highlight the recent progress made in our understanding of Yu-Shiba-Rusinov states in superconductors and topological states and illustrate the proposed induction of novel odd frequency Berezinskii pairing by YSR impurities. I will also discuss the universal nature of impurity resonances in unconventional SC and Dirac Materials and the implications these resonances have on functional properties of doped Dirac materials. Work supported by ERC, KAW and Villum Center for Dirac Materials.

Last modified: Apr 8, 2019, 2:05:35 AM