Anomalous Quasiparticle Reflection from the Surface of a $^3$He-$^4$He Dilute Solution
Other Condensed Matter
2017-11-22 v3
Abstract
A free surface of a dilute He-He liquid mixture is a unique system where two Fermi liquids with distinct dimensions coexist: a three-dimensional (3D) He Fermi liquid in bulk and a two-dimensional (2D) He Fermi liquid at the surface. To investigate a novel effect generated by the interaction between the two Fermi liquids, mobility of a Wigner crystal of electrons formed on the free surface of the mixture is studied. An anomalous enhancement of the mobility, compared with the case where the 3D and 2D systems do not interact with each other, is observed. The enhancement is explained by non-trivial reflection of 3D quasiparticles from the surface covered with the 2D He system.
Cite
@article{arxiv.1706.07533,
title = {Anomalous Quasiparticle Reflection from the Surface of a $^3$He-$^4$He Dilute Solution},
author = {Hiroki Ikegami and Kitak Kim and Daisuke Sato and Kimitoshi Kono and Hyoungsoon Choi and Yuriy P. Monarkha},
journal= {arXiv preprint arXiv:1706.07533},
year = {2017}
}