Anomalous Quasiparticle Reflection from the Surface of a \(^3\)He-\(^4\)He Dilute Solution

A free surface of a dilute \(^3\)He-\(^4\)He liquid mixture is a unique system where two Fermi liquids with distinct dimensions coexist: a three-dimensional (3D) \(^3\)He Fermi liquid in bulk and a two-dimensional (2D) \(^3\)He Fermi liquid at the surface. To investigate a novel effect generated by...

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Bibliographic Details
Published inarXiv.org
Main Authors Ikegami, Hiroki, Kim, Kitak, Sato, Daisuke, Kono, Kimitoshi, Choi, Hyoungsoon, Monarkha, Yuriy P
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 21.11.2017
Subjects
Dilution
Fermi liquids
Free surfaces
Reflection
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Summary:A free surface of a dilute \(^3\)He-\(^4\)He liquid mixture is a unique system where two Fermi liquids with distinct dimensions coexist: a three-dimensional (3D) \(^3\)He Fermi liquid in bulk and a two-dimensional (2D) \(^3\)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 \(^3\)He system.
ISSN:2331-8422
DOI:10.48550/arxiv.1706.07533