Gerard Martinez

TL;DR: Graphene multilayers are grown epitaxially on single crystal silicon carbide as discussed by the authors, which is composed of several graphene layers of which the first layer is electron doped due to the built-in electric field and the other layers are essentially undoped Unlike graphite the charge carriers show Dirac particle properties (i.e., an anomalous Berry's phase, weak anti-localization and square root field dependence of the Landau level energies).

TL;DR: Multilayer epitaxial graphene is investigated using far infrared transmission experiments in the different limits of low magnetic fields and high temperatures, finding the well-defined Landau level quantization up to room temperature at magnetic fields below 1 T, a phenomenon unusual in solid state systems.

TL;DR: Far infrared transmission experiments are performed on ultrathin epitaxial graphite samples in a magnetic field and the observed cyclotron resonance-like and electron-positron-like transitions are in excellent agreement with the expectations of a single-particle model of Dirac fermions in graphene.

TL;DR: In this paper, a zinc-blende crystal, HgCdTe, at the point of the semiconductor-to-semimetal topological transition was studied.

TL;DR: Superconductivity in the simple hexagonal phase of silicon is predicted on the basis of an electron-phonon-coupling calculation and measured experimentally up to a pressure of 25 GPa in a Bridgman-type opposed-anvil device.