Fractional quantum Hall effect in graphene

Fractional quantum Hall effect in strained graphene: stability of Laughlin states in disordered (pseudo)magnetic fields

Measurement of the 1⁄4 1=3 Fractional Quantum Hall Energy Gap in Suspended Graphene

We report on magnetotransport measurements of multiterminal suspended graphene devices. Fully developed integer quantum Hall states appear in magnetic fields as low as 2 T. At higher fields the formation of longitudinal resistance minima and transverse resistance plateaus are seen corresponding to fractional quantum Hall states, most strongly for 1⁄4 1=3. By measuring the temperature dependence...

Fractional quantum Hall effect in suspended graphene: Transport coefficients and electron interaction strength

Citation Abanin, D. A. et al. " Fractional quantum Hall effect in suspended graphene: Transport coefficients and electron interaction strength. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benef...

Quantum Hall effect in graphene: Status and prospects

Graphene is the recently discovered two-dimensional (2D) one atom thick allotrope of carbon. Electrons in graphene, obeying a linear dispersion relation, behave like massless relativistic particles. It is a 2D nanomaterial with many peculiar properties. It is the thinnest material in the universe and the strongest ever measured. Its charge carriers exhibit intrinsic mobility and can travel micr...

Theoretical expectations for a fractional quantum Hall effect in graphene

Due to its fourfold spin-valley degeneracy, graphene in a strong magnetic field may be viewed as a four-component quantum Hall system. We investigate the consequences of this particular structure on a possible, yet unobserved, fractional quantum Hall effect in graphene within a trial-wavefunction approach and exact-diagonalisation calculations. This trial-wavefunction approach generalises an or...