Observation of the e/3 fractionally charged Laughlin quasiparticle

被引：710

作者：

Saminadayar, L ^{[1
]}

Glattli, DC ^{[1
]}

Jin, Y ^{[1
]}

Etienne, B ^{[1
]}

机构：

[1] CNRS,MICROSTRUCT & MICROELECT LAB,F-92225 BAGNEUX,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.79.2526

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The existence of fractional charges carrying current is experimentally demonstrated. Using a 2D electron system in a high perpendicular magnetic field we measure the shot noise associated with tunneling in the fractional quantum Hall regime at Landau level filling factor 1/3. The noise gives a direct determination of the quasiparticle charge, which is found to be e* = e/3 as predicted by Laughlin. The existence of e/3 Laughlin quasiparticles is unambiguously confirmed by the shot noise to Johnson-Nyquist noise crossover found for temperature Theta = e*V-ds/2k(B).

引用

页码：2526 / 2529

页数：4

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