Observation of e/4 charge at $\nu =1/2$ in GaAs

Tomer Alkalai, Emily Hajigeorgiou, Adbhut Gupta +9

Even-denominator fractional quantum Hall states (FQHSs) fall outside the standard Laughlin's and Jain's odd-denominator hierarchy. In this work, we study the FQHS $\nu =1/2$ in the lo…