Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonant tunnelling between the chiral Landau states of twisted graphene
  lattices   A new class of multilayered functional materials has recently emerged in
which the component atomic layers are held together by weak van der Waals
forces that preserve the structural integrity and physical properties of each
layer. An exemplar of such a structure is a transistor device in which
relativistic Dirac Fermions can resonantly tunnel through a boron nitride
barrier, a few atomic layers thick, sandwiched between two graphene electrodes.
An applied magnetic field quantises graphene's gapless conduction and valence
band states into discrete Landau levels, allowing us to resolve individual
inter-Landau level transitions and thereby demonstrate that the energy,
momentum and chiral properties of the electrons are conserved in the tunnelling
process. We also demonstrate that the change in the semiclassical cyclotron
trajectories, following a tunnelling event, is a form of Klein tunnelling for
inter-layer transitions.

37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph