Reorientation of the stripe Phase of 2D Electrons by a Minute Density Modulation

Interacting two-dimensional electrons confined in a GaAs quantum well exhibit isotropic transport when the Fermi level resides in the first excited (N=1) Landau level. Adding an in-plane magnetic field (B_{||}) typically leads to an anisotropic, stripe-like (nematic) phase of electrons with the stripes oriented perpendicular to the B_{||} direction. Our... Show more