A pair of Nobel laureates in 2010 - Russian physicists Andrei Geim and Konstantin Novosyolov - presented a theoretical justification for the spatial structure of graphene with massless electrons. Both physicists received the Nobel Prize seven years ago for their work on graphene. So the new report is in some way the continuation of the previous work. An electron without mass (like a photon) is capable of carrying charge, but also simultaneously experiencing the effect of superconductivity.
In this case, this effect manifests itself on the surface of so-called topological materials and "3D graphene" can be considered one of them.
Interestingly, such a superficial state of the electron was predicted by the Soviet physicist Igor Tamm and the American William Shockley in the 1930s. On the basis of their work, the first theoretical justification for such a model of the behavior of an electron was introduced. Later the German scientist Hermann Weyl introduced the concept of semimetals, on the surface of which the "topological" behavior of electrons is possible. Such semimetals were first discovered in 2015 and
are now called Weyl's, and the "electron without mass" was called the Weyl fermion. On the surface of the crystalline material, the fermion moves along the so-called Fermi Arcs, the theoretical description of which was derived by Prof. MFTI Vladimir Volkov and Ph.D. Zhanna Devizorova.
Scientists in MIPT today continue to explore the properties of semimetals and are looking for the ability to control the movement of electrons on their surfaces with the help of magnetic or electric fields. The prize can be "ultra-fast" electronics, which promises to provide a breakthrough to a new level of performance. Related Products :
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