Emergent fractional quantum Hall effect at even denominator ν = 3/2 in a triple quantum well in tilted magnetic fields

Abstract

This work reports on the experimental observation of the even-denominator state ν = 3/2 in a trilayer electron system in tilted magnetic fields. The ν = 3/2 state demonstrates a strong minimum in longitudinal resistance and is accompanied by a plateau in Hall resistance in a narrow range of tilt angles.