Abstract
We investigate the formation of quantum confined structures on the
surface of a liquid helium film suspended on a nanostructured substrate.
We show theoretically that, by nanostructuring the substrate, it is
possible to change the geometry of the liquid helium surface, opening
the possibility of designing and controlling the formation of valleys
with different shapes. By applying an external electric field
perpendicular to the substrate plane, surface electrons can be trapped
into these valleys, as in a quantum dot. We investigate how the external
parameters, such as the electric field strength and the height of the
liquid helium bath, can be tuned to control the energy spectrum of the
trapped surface electrons.
Users
Please
log in to take part in the discussion (add own reviews or comments).