Electron-hole coexistence in disordered graphene probed by high-field magneto-transport

Details Electron-hole coexistence in disordered graphene probed by high-field magneto-transport Electron-hole coexistence in disordered graphene probed by high-field magneto-transport

2010-04-14

arxiv.org/abs/1004.2356v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We report on magneto-transport measurement in disordered graphene under pulsed magnetic field of up to 57T. For large electron or hole doping, the system displays the expected anomalous Integer Quantum Hall Effect (IQHE) specific to graphene up to filling factor $\nu=2$. In the close vicinity of the charge neutrality point, the system breaks up into co-existing puddles of holes and electrons, leading to a vanishing Hall and finite longitudinal resistance with no hint of divergence at very high magnetic field. Large resistance fluctuations are observed near the Dirac point. They are interpreted as the the natural consequence of the presence of electron and hole puddles. The magnetic field at which the amplitude of the fluctuations are the largest is directly linked to the mean size of the puddles.

Affiliated with

Also associated with

No associations

Rating

Electron-hole coexistence in disordered graphene probed by high-field magneto-transport 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 Electron-hole coexistence in disordered graphene probed by high-field magneto-transport, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron-hole coexistence in disordered graphene probed by high-field magneto-transport will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-525698