Line Plot from Scientific Research

δG measured at different D / ε 0 (legend) at n e = 1.5 × 10 12 cm −2 . At D / ε 0 = 0, no hysteresis is observed owing to the degeneracy of states A and B, as expected. The hysteresis that appears at finite D / ε 0 when sweeping H ⊥ up or down provides direct experimental evidence for the existence of the two states with different energies in a finite perpendicular magnetic field.

DOI