Share This Author
Experimental observation of the quantum Hall effect and Berry's phase in graphene
An experimental investigation of magneto-transport in a high-mobility single layer of graphene observes an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene.
Ultrahigh electron mobility in suspended graphene
Two-Dimensional Magnetotransport in the Extreme Quantum Limit
A quantized Hall plateau of ρxy=3he2, accompanied by a minimum in ρxx, was observed at T<5 K in magnetotransport of high-mobility, two-dimensional electrons, when the lowest-energy, spin-polarized…
Performance of monolayer graphene nanomechanical resonators with electrical readout.
By establishing many of the basic attributes of monolayer graphene resonators, the groundwork for applications of these devices, including high-sensitivity mass detectors, is put in place.
Dirac charge dynamics in graphene by infrared spectroscopy
A remarkable manifestation of the quantum character of electrons in matter is offered by graphene, a single atomic layer of graphite. Unlike conventional solids where electrons are described with the…
Room-Temperature Quantum Hall Effect in Graphene
It is shown that in graphene, in a single atomic layer of carbon, the QHE can be measured reliably even at room temperature, which makes possible QHE resistance standards becoming available to a broader community, outside a few national institutions.
Temperature-dependent transport in suspended graphene.
The resistivity of ultraclean suspended graphene is strongly temperature (T) dependent for 5<T<240 K and the nonuniversal conductivity decreases with decreasing T, consistent with a density inhomogeneity <10(8) cm(-2).
Infrared spectroscopy of Landau levels of graphene.
In infrared studies of the Landau level (LL) transitions in single layer graphene, the lack of precise scaling between different LL transitions indicates considerable contributions of many-particle effects to the infrared transition energies.
Observation of the fractional quantum Hall effect in graphene
The observation of the fractional quantum Hall effect in ultraclean, suspended graphene is reported and it is shown that at low carrier density graphene becomes an insulator with a magnetic-field-tunable energy gap.
Fractional quantum Hall effect of composite fermions.
- W. Pan, H. Stormer, D. Tsui, L. Pfeiffer, K. Baldwin, K. West
- PhysicsPhysical review letters
- 9 January 2003
These sequences of fractions do not fit into the standard series of integral quantum Hall effects of composite fermions (CF) at nu = p/(2mp +/- 1), but can be regarded as the FQHE of CFs attesting to residual interactions between these composite particles.