Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonant tunneling diode based on graphene/h-BN heterostructure   In this letter, we propose the resonant tunneling diode (RTD) based on a
double-barrier graphene/boron nitride (BN) heterostructure as device suitable
to take advantage of the elaboration of atomic sheets containing different
domains of BN and C phases within a hexagonal lattice. The device operation and
performance are investigated by means of a self- consistent model within the
non-equilibrium Green's function formalism on a tight-binding Hamiltonian. This
RTD exhibits a negative differential conductance effect which involves the
resonant tunneling through both the electron and hole bound states of the
graphene quantum well. It is shown that the peak- to-valley ratio can reach the
value of 4 at room temperature for gapless graphene and the value of 13 for a
bandgap of 50 meV.

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
3
The categories of this paper are: physics