Theory of quantum Hall effect in bilayer grapheme
APA
Miransky, V. (2011). Theory of quantum Hall effect in bilayer grapheme. Perimeter Institute. https://pirsa.org/11040094
MLA
Miransky, Volodya. Theory of quantum Hall effect in bilayer grapheme. Perimeter Institute, Apr. 26, 2011, https://pirsa.org/11040094
BibTex
@misc{ pirsa_PIRSA:11040094, doi = {10.48660/11040094}, url = {https://pirsa.org/11040094}, author = {Miransky, Volodya}, keywords = {Condensed Matter}, language = {en}, title = {Theory of quantum Hall effect in bilayer grapheme}, publisher = {Perimeter Institute}, year = {2011}, month = {apr}, note = {PIRSA:11040094 see, \url{https://pirsa.org}} }
Western University
Talk Type
Subject
Abstract
Utilizing the Baym-Kadanoff formalism with the polarization function calculated in the random phase approximation, the dynamics of the ý=0, ñ1, ñ2, ñ3, ñ4 quantum Hall states in bilayer graphene is analyzed. In particular, in the undoped graphene, corresponding to the ý =0 state, two phases with nonzero energy gap, the ferromagnetic and layer asymmetric ones, are found. The phase diagram in the plane (ÃÂ0,B), where ÃÂ0 is
a top-bottom gates voltage imbalance, is described. It is shown that the energy gaps in these phases scale linearly, ÃÂE~10 B [T] K, with magnetic field. The ground states of the doped states, with ý=ñ1, ñ2, ñ3, ñ4,
are also described. The comparison of these results with recent experiments in bilayer graphene is presented.