Observation of two-dimensional classical wave localization: third sound on superfluid 4He films on a disordered substrate.
We present the results of measurements of the propagation of third sound waves on superfluid 4He adsorbed to two-dimensional ordered and disordered substrates. In the disordered case we compare the experimental results to theoretical predictions of classical wave localization in such systems and conclude that classical wave localization is present in our system.
Luhman
D R
DR
Laboratory of Low Temperature Physics, Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Herrmann
J C
JC
Hallock
R B
RB