Invariance of Charge of Laughlin Quasiparticles

Details Invariance of Charge of Laughlin Quasiparticles Invariance of Charge of Laughlin Quasiparticles

2000-10-05

arxiv.org/abs/cond-mat/0010093v1

Phys. Rev. B 64, 085319 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figs

Scientific paper

10.1103/PhysRevB.64.085319

A Quantum Antidot electrometer has been used in the first direct observation of the fractionally quantized electric charge. In this paper we report experiments performed on the integer i = 1, 2 and fractional f = 1/3 quantum Hall plateaus extending over a filling factor range of at least 27%. We find the charge of the Laughlin quasiparticles to be invariantly e/3, with standard deviation of 1.2% and absolute accuracy of 4%, independent of filling, tunneling current, and temperature.

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