Thermoelectric transport in a correlated electron system on the surface of liquid helium

Abstract

We report on the direct observation of the thermoelectric transport in a nondegenerate correlated electron system formed on the surface of liquid helium. We find that the microwave-induced excitation of the vertical transitions of electrons between the surface-bound states leads to their lateral flow, which we were able to detect by employing a segmented electrode configuration. We show that this flow of electrons arises due to the Seebeck effect, thus our method provides a new tool to study thermoelectricity in a disorder-free correlated electron system. Our experimental results are in good agreement with the theoretical calculations based on kinetic equations, with proper account of fast electron-electron collisions.

5 pages, 3 figures, supplementary materials

References in corpus (5)

• Two-terminal transport measurements with cold atoms
• Relaxation of the Excited Rydberg States of Surface Electrons on Liquid Helium
• Thermoelectric transport and Peltier cooling of cold atomic gases
• The role of electron-electron collisions for charge and heat transport at intermediate temperatures
• Thermoelectricity of cold ions in optical lattices