Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-10-04
Phys. Rev. B 83, 115422 (2011)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 pages, 5 figures
Scientific paper
Monolayer graphene with an energy gap presents a pseudospin symmetry broken ferromagnet with a perpendicular pseudomagnetization whose direction is switched by altering the type of doping between n and p. We demonstrate an electrical current switching effect in pseudospin version of a spin valve in which two pseudoferromagnetic regions are contacted through a normal graphene region. The proposed structure exhibits a pseudomagnetoresistance, defined as the relative difference of resistances of parallel and antiparallel alignments of the pseudomagnetizations, which can be tuned to unity. This perfect pseudomagnetic switching is found to show a strong robustness with respect to increasing of the contact length, the effect which we explain in terms of an unusually long range penetration of an equilibrium pseudospin polarization into the normal region by proximity to a pseudoferromagnet. Our results reveals the potential of gapped graphene for realization of pseudospin-based nanoelectronics.
Majidi Leyla
Zareyan Malek
No associations
LandOfFree
Pseudospin polarized quantum transport in monolayer 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 Pseudospin polarized quantum transport in monolayer graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pseudospin polarized quantum transport in monolayer graphene will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-267956