Anomalous Quasiparticle Reflection from the Surface of a He-3-He-4 Dilute Solution

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A free surface of a dilute He-3-He-4 liquid mixture is a unique system where two Fermi liquids with distinct dimensions coexist: a three-dimensional (3D) He-3 Fermi liquid in the bulk and a two-dimensional (2D) He-3 Fermi liquid at the surface. To investigate a novel effect generated by the interaction between the two Fermi liquids, the 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 the nontrivial reflection of 3D quasiparticles from the surface covered with the 2D He-3 system.
Publisher
AMER PHYSICAL SOC
Issue Date
2017-11
Language
English
Article Type
Article
Keywords

FERMI-LIQUID BEHAVIOR; SUPERFLUID HE-3; LOW-TEMPERATURES; MOLAR VOLUME; MIXTURES; VISCOSITY; ELECTRONS; MOBILITY; DENSITY; HELIUM

Citation

PHYSICAL REVIEW LETTERS, v.119, no.19, pp.195302

ISSN
0031-9007
DOI
10.1103/PhysRevLett.119.195302
URI
http://hdl.handle.net/10203/227187
Appears in Collection
PH-Journal Papers(저널논문)
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