Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Edge proximity-induced magnetoresistance and spin polarization in
  ferromagnetic gated bilayer graphene nanoribbon   Coherent spin-dependent transport through a junction containing of
Normal/Ferromagnetic/Normal bilayer graphene nanoribbon with zigzag edges is
investigated by using Landauer formalism. In a more realistic set-up, the
exchange field is induced by two ferromagnetic insulator strips deposited on
the ribbon edges while a perpendicular electric field is applied by the top
gated electrodes. Our results show that, for antiparallel configuration, a band
gap is opened giving rise a semiconducting behavior, while for parallel
configuration, the band structure has no band gap. As a result, a giant
magnetoresistance is achievable by changing the alignment of induced
magnetization. Application of a perpendicular electric field on the parallel
configuration, results in a spin field-effect transistor where a fully spin
polarization occurs around the Dirac point. To be comparable our results with
the one for monolayer graphene, we demonstrate that the reflection symmetry and
so the parity conservation fails in bilayer graphene nanoribbons with the
zigzag edges.

11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th