Three layers of graphene reveals a new kind of magnet
A spectrum of the three layer #graphene as a function of magnetic field and density of electrons. Credit: Biswajit Datta, Mandar Deshmukh Metals have a large density of electrons and to be able to see the wave nature of electrons one has to make metallic wires that are only a few atoms wide. However, in graphene – one atom thick graphite—the density of electrons is much smaller and can be changed by making a transistor. As a result of the low density of electrons the wave nature of electrons, as described by quantum mechanics, is easier to observe in graphene.