Category archives: DIPC

How to study magnetic Weyl fermions experimentally

How to study magnetic Weyl fermions experimentally

ChemistryCondensed matterQuantum physicsTheoretical physics

By DIPC

Imagine there exist a material in which an electron could be split into two quasiparticles. These two quasiparticles both would carry electric charge, move in opposite directions but could not move backwards. Furthermore these quasiparticles would be massless. And we can give them a fancy name, Weyl fermions. This seems to be at odds with […]

Quantum dots embedded in graphene nanoribbons

Quantum dots embedded in graphene nanoribbons

ChemistryCondensed matterMaterialsNanotechnology

By DIPC

Graphene nanoribbons (GNRs), are strips of graphene with ultra-thin width (<50 nm). Graphene ribbons were introduced as a theoretical model by Mitsutaka Fujita and coauthors to examine the edge and nanoscale size effect in graphene. GNRs are very interesting structures, partly due to their attractive electronic properties. Those properties vary dramatically with changes in the […]

Quantifying the screening of electrons in graphene heterostructures

Quantifying the screening of electrons in graphene heterostructures

Condensed matterMaterialsPhysicsQuantum physics

By DIPC

Beginning in 1928, Felix Bloch, an assistant to Werner Heisenberg in Leipzig, began to make some realistic assumptions in an attempt to formulate a more complete quantum mechanics of electrical conductivity. First, because he wanted to assign a definite momentum and energy to each of the electrons, but not a definite position or a time […]