Can I read Evolution of the nu = 1 Ground-State in Coupled Double Quantum Wells: Optical Evidence for Broken-Symmetry States on EtoBox?

Evolution of the nu = 1 Ground-State in Coupled Double Quantum Wells: Optical Evidence for Broken-Symmetry States by Manfra, Michael J.; Pniower, Justin C.; Goldberg, Bennett B.; Pinczuk, Aron; Pellegrini, Vittorio; Pfeiffer, Loren N.; West, Ken W. is a scholarly article available to read on EtoBox.

What is Evolution of the nu = 1 Ground-State in Coupled Double Quantum Wells: Optical Evidence for Broken-Symmetry States about?

We present the first magneto-absorption studies of coupled electron double layers in the quantum Hall regime. Optical absorption spectra in the vicinity of total filling factor nu = 1 reveal intriguing behavior that have no analog in the single electron layer nu = 1 state and demonstrate the interplay between single-particle tunneling and inter-layer Coulomb effects. The spectra provide direct evidence of a ground-state that evolves from a region dominated by single-particle tunneling to a regime in which inter-layer Coulomb interactions determine the nature of the ground-state. Moreover the spectra provide the first direct evidence that the incompressible ground-state at nu = 1 in the many-body regime is not fully pseudospin polarized and is sensitive to the effects of quantum fluctuations in the pseudospin variable.

Author

Manfra, Michael J.; Pniower, Justin C.; Goldberg, Bennett B.; Pinczuk, Aron; Pellegrini, Vittorio; Pfeiffer, Loren N.; West, Ken W.

Published

1998

Language

EN