S. Khlebnikov

Published in:

Physical Review B 73,4 (2006) 045331;


We show that the piezoelectric coupling to three-dimensional phonons in GaAs renormalizes the current-voltage exponent for tunneling of electrons into an incompressible quantum Hall edge. The leading correction is always negative, in agreement with experiments on the nu=1/3 state, and, depending on the precise value of the edge plasmon speed, can be as large as a few percent. We also discuss higher-order corrections, which determine the effect of the piezoelectric coupling in the extreme infrared limit.


chiral luttinger liquids;; states

Date of this Version

January 2006



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