Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells

Details Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells

1995-12-21

arxiv.org/abs/cond-mat/9512145v1

Physics

Condensed Matter

4 pages, REVTEX with psfig macro, 4 figures

Scientific paper

10.1016/0038-1098(96)00200-1

We investigate the intersubband spin-density-excitation spectrum of a double quantum well in a low-density symmetry-broken phase with interwell antiferromagnetic correlations. This spectrum is related to the intensity measured in depolarized inelastic light scattering (ILS) experiments and therefore provides a means of empirically identifying the antiferromagnetic phase. Our computations reveal the existence of two collective modes, a damped Nambu-Goldstone (NG) mode arising from the broken spin symmetry and an undamped optical mode. Since the NG mode contains most of the spectral weight, ILS experiments will need to examine the low-frequency response for signatures of the antiferromagnetic phase.

Affiliated with

Also associated with

No associations

Rating

Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective Modes in a Symmetry-Broken Phase: Antiferromagnetically Correlated Quantum Wells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-98378