Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices

Details Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices

2007-05-31

arxiv.org/abs/0705.4615v1

Phys. Rev. B 75 (2007) 245322 (1-7)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 6 figures, accepted for publication in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.75.245322

The magnetoresistance of the MBE-grown GaAs/AlGaAs superlattice with Si-doped barriers has been measured in tilted magnetic fields in the as-grown state, and after brief illumination by a red-light diode at low temperature, T is approximately 0.3 K. A remarkable illumination-induced modification of magnetoresistance curves has been observed, which indicates a significant change of the superlattice Fermi surface topology. Analysis of magnetoresistance data in terms of the tight-binding model reveals that not only electron concentration and mobility have been increased by illumination, but also the coupling among 2D electron layers in neighboring quantum wells has been reduced.

Affiliated with

Also associated with

No associations

Rating

Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices 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 Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illumination-induced changes of the Fermi surface topology in three-dimensional superlattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-289023