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|Abstract:||The two-dimensional electron system in an InAs quantum well has emerged as a prime candidate for hosting exotic quasiparticles with non-Abelian statistics such as Majorana fermions and parafermions. To attain its full promise, however, the electron system has to be clean enough to exhibit electron-electron interaction phenomena. Here, we report the observation of the fractional quantum Hall effect in a very low disorder InAs quantum well with a well width of 24 nm, containing a two-dimensional electron system with a density n=7.8×1011cm-2 and low-temperature mobility 1.8×106cm2/Vs. At a temperature of ≃35 mK and B≃24 T, we observe a deep minimum in the longitudinal resistance, accompanied by a nearly quantized Hall plateau at a Landau level filling factor ν=4/3.|
|Citation:||Ma, MK, Hossain, MS, Villegas Rosales, KA, Deng, H, Tschirky, T, Wegscheider, W, Shayegan, M. (2017). Observation of fractional quantum Hall effect in an InAs quantum well. Physical Review B, 96 (10.1103/PhysRevB.96.241301|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Physical Review B|
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