Quantum-degeneracy effects in the mobility of the electron fluid on the surface of helium

Márcia C. Pereira, Gilmar E. Marques, and Nelson Studart
Phys. Rev. B 46, 1857 – Published 15 July 1992
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Abstract

The dc mobility of two-dimensional electrons on the surface of helium liquid is calculated with the quantum degeneracy of the electron distribution and the effect of multisubband occupation taken into account. The subband structure is obtained from a self-consistent Schrödinger equation with the inclusion of the Hartree and exchange-correlation potentials. It is shown that the effect of higher subband population of electrons is small for low temperatures and the calculated mobility gives better agreement with the experimental results than that one obtained with the Maxwellian electron distribution for moderate electron concentrations. The effect of screening is briefly discussed.

  • Received 17 December 1991

DOI:https://doi.org/10.1103/PhysRevB.46.1857

©1992 American Physical Society

Authors & Affiliations

Márcia C. Pereira

  • Departamento de Física e Ciência dos Materiais, Instituto de Física e Química de São Carlos, Universidade de São Paulo, 13560 São Carlos (SP), Brazil

Gilmar E. Marques and Nelson Studart

  • Departamento de Física, Universidade Federal de São Carlos, 13560 São Carlos (SP), Brazil

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Vol. 46, Iss. 3 — 15 July 1992

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