From laterally modulated two-dimensional electron gas towards artificial graphene

Details From laterally modulated two-dimensional electron gas towards artificial graphene From laterally modulated two-dimensional electron gas towards artificial graphene

2011-04-28

arxiv.org/abs/1104.5427v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

Cyclotron resonance has been measured in far-infrared transmission of GaAs/Al$_x$Ga$_{1-x}$As heterostructures with an etched hexagonal lateral superlattice. Non-linear dependence of the resonance position on magnetic field was observed as well as its splitting into several modes. Our explanation, based on a perturbative calculation, describes the observed phenomena as a weak effect of the lateral potential on the two-dimensional electron gas. Using this approach, we found a correlation between parameters of the lateral patterning and the created effective potential and obtain thus insights on how the electronic miniband structure has been tuned. The miniband dispersion was calculated using a simplified model and allowed us to formulate four basic criteria that have to be satisfied to reach graphene-like physics in such systems.

Affiliated with

Also associated with

No associations

Rating

From laterally modulated two-dimensional electron gas towards artificial graphene 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 From laterally modulated two-dimensional electron gas towards artificial graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From laterally modulated two-dimensional electron gas towards artificial graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-450265