Search for composite fermions at filling factor 5/2: Role of Landau level and subband index
Search for composite fermions at filling factor 5/2: Role of Landau level and subband index
The pairing of composite fermions (CFs), i.e., electron-flux quasiparticles, is commonly proposed to explain the even-denominator fractional quantum Hall state observed at $\ensuremath{\nu}=5/2$ in the first excited $(N=1)$ Landau level (LL) of a two-dimensional electron system (2DES). While well established to exist in the lowest $(N=0)$ LL, much is unknown …