Resonantly enhanced tunneling in a double layer quantum hall ferromagnet.

  title={Resonantly enhanced tunneling in a double layer quantum hall ferromagnet.},
  author={I. Spielman and J. Eisenstein and L. Pfeiffer and K. West},
  journal={Physical review letters},
  volume={84 25},
The tunneling conductance between two parallel 2D electron systems has been measured in a regime of strong interlayer Coulomb correlations. At total Landau level filling nuT=1 the tunnel spectrum changes qualitatively when the boundary separating the compressible phase from the ferromagnetic quantized Hall state is crossed. A huge resonant enhancement replaces the strongly suppressed equilibrium tunneling characteristic of weakly coupled layers. The possible relationship of this enhancement to… Expand

Figures and Topics from this paper