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Observation of Aharonov-Bohm Superperiod in a Laughlin Quasiparticle Interferometer | | F. E. Camino
; Wei Zhou
; V. J. Goldman
; | | Date: |
13 Apr 2005 | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Strongly Correlated Electrons | cond-mat.mes-hall cond-mat.str-el | | Abstract: | We report realization of a Laughlin quasiparticle interferometer, where quasiparticles of the 1/3 fractional quantum Hall fluid encircle an island of the 2/5 fluid. Interference fringes are observed as conductance oscillations, as in the Aharonov-Bohm effect. For the first time, we observe an Aharonov-Bohm superperiod of five magnetic flux quanta (5h/e) through the island. The corresponding 2e charge period is confirmed in calibrated gate experiments. These results are interpreted in terms of the anyonic statistical phase acquired by a quasiparticle of the 1/3 fluid encircling the quasiparticles of the 2/5 fluid. | | Source: | arXiv, cond-mat/0504341 | | Services: | Forum | Review | PDF | Favorites | |
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