Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Exotic Quantum Phase in Strongly Correlated Systems: Nematic Fermi Liquid

Dr. Hae-Young Kee
Department of Physics, University of Toronto

Wednesday, October 16, 2002
10:30 AM @ Stirling 501

Abstract:

The existence of novel inhomogeneous and/or anisotropic quantum ground states in various electronic systems have been demonstrated by remarkable experiments on a number of different systems, in the last few years.

I will review the phenomena of inhomogeneous spin and charge ordering observed in some of complex materials such as high temperature superconductors, and manganite.

I will show a microscopic theory of the electronic nematic Fermi liquid where the system of interacting fermions spontaneously breaks the rotational symmetry while the translational symmetry is preserved. A consequence of the nematic order in the context of the sound propagation and the pairing instability in the nematic state will be presented.

I will also discuss the breakdown of the Fermi liquid theory in these types of ground states, and the theoretical studies to understand the underlying mechanism of exotic orderings and their electronic properties.