Calendar of Events

Events Calendar

Universal Dynamics of Nematic Quantum Critical Metals

Date and Time: Tuesday, February 26, 2019, 01:30pm -
Location: 330W Serin (Renovated P&A Meeting Room and Seminar Space)
 

Speaker: Avraham Klein (University of Minnesota)

Electronic nematicity – spontaneous quadrupole deformation of the electronic dispersion – has been discovered in a variety of strongly correlated quantum materials. Of special interest are metals near a nematic quantum critical point, such as iron-based superconductors. I will discuss how the non-conservation of a nematic order parameter links long-range quantum fluctuations and short-range anisotropy. This link appears in the nonzero uniform dynamical susceptibility in polarized Raman scattering, and reveals important microscopic details about the iron-based superconductors. The interplay of long- and short- scales also gives rise to a unique form of superconducting pairing and leads to a highly anisotropic superconducting gap that evolves strongly with temperature.

Host: Joel Lebowitz

Extra Info: Please contact Ms. Nancy Pamula (This email address is being protected from spambots. You need JavaScript enabled to view it.) with questions regarding travel arrangements and reimbursements. Questions about the CM seminar schedule should be addressed to Prof. Premi Chandra (This email address is being protected from spambots. You need JavaScript enabled to view it.).