Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder

Details Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder

2004-01-07

arxiv.org/abs/cond-mat/0401085v2

Physical Review B 70 (2004) 033303

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 jan 2004

Scientific paper

10.1103/PhysRevB.70.033303

We have observed a large positive quasi-classical magneto-resistance (MR) in a high mobility 2D electron gas in AlGaAs/GaAs heterostructure. The magneto-resistance is non-saturating and increases with magnetic field as $\rho_{xx}\sim B^{\alpha} (\alpha=0.9-1.2)$. In antidot lattices a non-monotonic MR is observed. We show that in both cases this MR can be qualitatively described in terms of the theory recently advanced by Polyakov et al (PRB, 64, 205306 (2001)). Their prediction is that such behavior as we observe may be the consequence of a concurrent existence of short and long range scattering potentials.

Affiliated with

Also associated with

No associations

Rating

Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder 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 Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-113975