When:
Thursday, April 24, 2014
4:00 PM - 5:00 PM CT
Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Public
Contact:
Pamela Horstmann
Group: Physics and Astronomy Condensed Matter Physics Seminars
Category: Academic
Title: 1D-1D Coulomb Drag Signature of a Luttinger Liquid
Speaker: Professor Guillaume Gervais, McGill University
Abstract: One-dimensional (1D) interacting electronic systems exhibit distinct properties when compared to their counterparts in higher dimensions. I will discuss our Coulomb drag measurements between vertically-integrated quantum wires separated by a barrier only 15 nm wide. The temperature dependence of the drag resistance is measured in the true 1D regime where both wires have less than one 1D subband occupied. As a function of temperature, an upturn in the drag resistance is observed below a temperature T* ~ 1.6 K. This crossover in Coulomb drag behavior is consistent with Tomonaga-Luttinger liquid models for the 1D-1D drag between quantum wires.
Keywords: Physics, Astronomy, CMP