I. J. Vera-Marun

Quantized conductance of a suspended graphene nanoconstriction

Quantization of the current flowing across a nanometre-scale constriction in graphene is usually destroyed through charge-scattering from rough edges and impurities. But by using high-quality suspended samples and a constriction whose length is shorter than its width, conductance quantization in graphene has now been demonstrated.

Spin Transport in High-Quality Suspended Graphene Devices

We measure spin transport in high mobility suspended graphene (μ ≈ 10(5)cm(2)/(V s)), obtaining a (spin) diffusion coefficient of 0.1 m(2)/s and giving a lower bound on the spin relaxation time (τ(s) ≈ 150 ps) and spin relaxation length (λ(s) = 4.7 μm) for intrinsic graphene. We develop a theoretical model considering the different graphene regions of our devices that explains our experimental data.

Enhancement of spin relaxation time in hydrogenated graphene spin-valve devices

Hydrogen adsorbates in graphene are interesting as they are not only strong Coulomb scatterers, but they also induce a change in orbital hybridization of the carbon network from

Nonlinear detection of spin currents in graphene with non-magnetic electrodes

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Absence of hyperfine effects in 13C-graphene spin-valve devices

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Spin transport in graphene nanostructures

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Quantum Hall transport as a probe of capacitance profile at graphene edges

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Transition between one-dimensional and zero-dimensional spin transport studied by Hanle precession

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