TY - JOUR
T1 - Observation of fractional quantum Hall effect in an InAs quantum well
AU - Ma, Meng K.
AU - Hossain, Md Shafayat
AU - Villegas Rosales, K. A.
AU - Deng, H.
AU - Tschirky, T.
AU - Wegscheider, W.
AU - Shayegan, M.
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/12/4
Y1 - 2017/12/4
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.96.241301
DO - 10.1103/PhysRevB.96.241301
M3 - Article
AN - SCOPUS:85039440015
SN - 2469-9950
VL - 96
JO - Physical Review B
JF - Physical Review B
IS - 24
M1 - 241301
ER -