Screening of electrostatic potential in a composite fermion system

Details Screening of electrostatic potential in a composite fermion system Screening of electrostatic potential in a composite fermion system

1998-12-12

arxiv.org/abs/cond-mat/9812208v1

Low Temp. Phys. 24 (1998) 858

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 eps figures included

Scientific paper

10.1063/1.593516

Screening of the electric field of a test charge by monolayer and double-layer composite fermion systems is considered. It is shown that the electric field of the test charge is partly screened at distances much large then the magnetic length. The value of screening as a function of the distance depends considerably on the filling factor. The effect of variation of the value of screening in the double-layer system upon a transition to a state described by the Halperin wave function is determined.

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